diff --git a/CHANGELOG.md b/CHANGELOG.md
index 28cd2af73f109..70861fdbc98c9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,6 +19,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Remote reindex: Add support for configurable retry mechanism ([#12561](https://github.com/opensearch-project/OpenSearch/pull/12561))
 - [Admission Control] Integrate IO Usage Tracker to the Resource Usage Collector Service and Emit IO Usage Stats ([#11880](https://github.com/opensearch-project/OpenSearch/pull/11880))
 - Tracing for deep search path ([#12103](https://github.com/opensearch-project/OpenSearch/pull/12103))
+- Add explicit dependency to validatePom and generatePom tasks ([#12103](https://github.com/opensearch-project/OpenSearch/pull/12807))
 
 ### Dependencies
 - Bump `log4j-core` from 2.18.0 to 2.19.0
@@ -105,6 +106,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 ### Dependencies
 
 ### Changed
+- [BWC and API enforcement] Enforcing the presence of API annotations at build time ([#12872](https://github.com/opensearch-project/OpenSearch/pull/12872))
 
 ### Deprecated
 
diff --git a/buildSrc/src/main/java/org/opensearch/gradle/pluginzip/Publish.java b/buildSrc/src/main/java/org/opensearch/gradle/pluginzip/Publish.java
index 5d7e78589306f..599beb8649fcd 100644
--- a/buildSrc/src/main/java/org/opensearch/gradle/pluginzip/Publish.java
+++ b/buildSrc/src/main/java/org/opensearch/gradle/pluginzip/Publish.java
@@ -65,9 +65,6 @@ public void apply(Project project) {
                 addLocalMavenRepo(project);
                 addZipArtifact(project);
                 Task validatePluginZipPom = project.getTasks().findByName("validatePluginZipPom");
-                if (validatePluginZipPom != null) {
-                    validatePluginZipPom.dependsOn("generatePomFileForNebulaPublication");
-                }
 
                 // There are number of tasks prefixed by 'publishPluginZipPublication', f.e.:
                 // publishPluginZipPublicationToZipStagingRepository, publishPluginZipPublicationToMavenLocal
@@ -76,7 +73,11 @@ public void apply(Project project) {
                     .filter(t -> t.getName().startsWith("publishPluginZipPublicationTo"))
                     .collect(Collectors.toSet());
                 if (!publishPluginZipPublicationToTasks.isEmpty()) {
-                    publishPluginZipPublicationToTasks.forEach(t -> t.dependsOn("generatePomFileForNebulaPublication"));
+                    if (validatePluginZipPom != null) {
+                        publishPluginZipPublicationToTasks.forEach(t -> t.dependsOn(validatePluginZipPom));
+                    } else {
+                        publishPluginZipPublicationToTasks.forEach(t -> t.dependsOn("generatePomFileForNebulaPublication"));
+                    }
                 }
             } else {
                 project.getLogger()
diff --git a/buildSrc/src/main/java/org/opensearch/gradle/precommit/PomValidationPrecommitPlugin.java b/buildSrc/src/main/java/org/opensearch/gradle/precommit/PomValidationPrecommitPlugin.java
index 0e7a357dd5d18..62194af3c3350 100644
--- a/buildSrc/src/main/java/org/opensearch/gradle/precommit/PomValidationPrecommitPlugin.java
+++ b/buildSrc/src/main/java/org/opensearch/gradle/precommit/PomValidationPrecommitPlugin.java
@@ -48,17 +48,24 @@ public class PomValidationPrecommitPlugin extends PrecommitPlugin {
     public TaskProvider<? extends Task> createTask(Project project) {
         TaskProvider<Task> validatePom = project.getTasks().register("validatePom");
         PublishingExtension publishing = project.getExtensions().getByType(PublishingExtension.class);
-        publishing.getPublications().all(publication -> {
+        publishing.getPublications().configureEach(publication -> {
             String publicationName = Util.capitalize(publication.getName());
             TaskProvider<PomValidationTask> validateTask = project.getTasks()
                 .register("validate" + publicationName + "Pom", PomValidationTask.class);
             validatePom.configure(t -> t.dependsOn(validateTask));
+            TaskProvider<GenerateMavenPom> generateMavenPom = project.getTasks()
+                .withType(GenerateMavenPom.class)
+                .named("generatePomFileFor" + publicationName + "Publication");
             validateTask.configure(task -> {
-                GenerateMavenPom generateMavenPom = project.getTasks()
-                    .withType(GenerateMavenPom.class)
-                    .getByName("generatePomFileFor" + publicationName + "Publication");
                 task.dependsOn(generateMavenPom);
-                task.getPomFile().fileValue(generateMavenPom.getDestination());
+                task.getPomFile().fileProvider(generateMavenPom.map(GenerateMavenPom::getDestination));
+                publishing.getPublications().configureEach(publicationForPomGen -> {
+                    task.mustRunAfter(
+                        project.getTasks()
+                            .withType(GenerateMavenPom.class)
+                            .getByName("generatePomFileFor" + Util.capitalize(publicationForPomGen.getName()) + "Publication")
+                    );
+                });
             });
         });
 
diff --git a/buildSrc/src/main/java/org/opensearch/gradle/precommit/PomValidationTask.java b/buildSrc/src/main/java/org/opensearch/gradle/precommit/PomValidationTask.java
index aca882fbb6477..b76e0d6dd93cf 100644
--- a/buildSrc/src/main/java/org/opensearch/gradle/precommit/PomValidationTask.java
+++ b/buildSrc/src/main/java/org/opensearch/gradle/precommit/PomValidationTask.java
@@ -106,6 +106,7 @@ private <T> void validateNonNull(String element, T value, Runnable validator) {
 
     private void validateString(String element, String value) {
         validateNonNull(element, value, () -> validateNonEmpty(element, value, s -> s.trim().isEmpty()));
+        getLogger().info(element + " with value " + value + " is validated.");
     }
 
     private <T> void validateCollection(String element, Collection<T> value, Consumer<T> validator) {
diff --git a/libs/core/src/main/java/org/opensearch/OpenSearchException.java b/libs/core/src/main/java/org/opensearch/OpenSearchException.java
index cce86b452f698..dda3983fbb4d1 100644
--- a/libs/core/src/main/java/org/opensearch/OpenSearchException.java
+++ b/libs/core/src/main/java/org/opensearch/OpenSearchException.java
@@ -33,6 +33,7 @@
 
 import org.opensearch.common.CheckedFunction;
 import org.opensearch.common.Nullable;
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.collect.Tuple;
 import org.opensearch.core.ParseField;
 import org.opensearch.core.common.Strings;
@@ -69,8 +70,9 @@
 /**
  * A core library base class for all opensearch exceptions.
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public class OpenSearchException extends RuntimeException implements Writeable, ToXContentFragment {
 
     protected static final Version UNKNOWN_VERSION_ADDED = Version.fromId(0);
diff --git a/libs/core/src/main/java/org/opensearch/core/common/breaker/CircuitBreaker.java b/libs/core/src/main/java/org/opensearch/core/common/breaker/CircuitBreaker.java
index 846950ff17c63..9a09b3b38a5f2 100644
--- a/libs/core/src/main/java/org/opensearch/core/common/breaker/CircuitBreaker.java
+++ b/libs/core/src/main/java/org/opensearch/core/common/breaker/CircuitBreaker.java
@@ -32,14 +32,17 @@
 
 package org.opensearch.core.common.breaker;
 
+import org.opensearch.common.annotation.PublicApi;
+
 import java.util.Locale;
 
 /**
  * Interface for an object that can be incremented, breaking after some
  * configured limit has been reached.
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface CircuitBreaker {
 
     /**
@@ -72,8 +75,10 @@ public interface CircuitBreaker {
     /**
      * The type of breaker
      * can be {@link #MEMORY}, {@link #PARENT}, or {@link #NOOP}
-     * @opensearch.internal
+     *
+     * @opensearch.api
      */
+    @PublicApi(since = "1.0.0")
     enum Type {
         /** A regular or ChildMemoryCircuitBreaker */
         MEMORY,
diff --git a/libs/core/src/main/java/org/opensearch/core/common/transport/BoundTransportAddress.java b/libs/core/src/main/java/org/opensearch/core/common/transport/BoundTransportAddress.java
index 8908a172395f2..e2266339c058f 100644
--- a/libs/core/src/main/java/org/opensearch/core/common/transport/BoundTransportAddress.java
+++ b/libs/core/src/main/java/org/opensearch/core/common/transport/BoundTransportAddress.java
@@ -32,6 +32,7 @@
 
 package org.opensearch.core.common.transport;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.network.InetAddresses;
 import org.opensearch.core.common.io.stream.StreamInput;
 import org.opensearch.core.common.io.stream.StreamOutput;
@@ -44,8 +45,9 @@
  * the addresses the transport is bound to, and the other is the published one that represents the address clients
  * should communicate on.
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public class BoundTransportAddress implements Writeable {
 
     private TransportAddress[] boundAddresses;
diff --git a/libs/core/src/main/java/org/opensearch/core/transport/TransportResponse.java b/libs/core/src/main/java/org/opensearch/core/transport/TransportResponse.java
index 038069e93a51b..4ae01e140a89c 100644
--- a/libs/core/src/main/java/org/opensearch/core/transport/TransportResponse.java
+++ b/libs/core/src/main/java/org/opensearch/core/transport/TransportResponse.java
@@ -32,6 +32,7 @@
 
 package org.opensearch.core.transport;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.core.common.io.stream.StreamInput;
 import org.opensearch.core.common.io.stream.StreamOutput;
 
@@ -40,8 +41,9 @@
 /**
  * Response over the transport interface
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public abstract class TransportResponse extends TransportMessage {
 
     /**
diff --git a/libs/core/src/main/java/org/opensearch/semver/SemverRange.java b/libs/core/src/main/java/org/opensearch/semver/SemverRange.java
index da87acc7124aa..da8c06c07d8e5 100644
--- a/libs/core/src/main/java/org/opensearch/semver/SemverRange.java
+++ b/libs/core/src/main/java/org/opensearch/semver/SemverRange.java
@@ -10,6 +10,7 @@
 
 import org.opensearch.Version;
 import org.opensearch.common.Nullable;
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.core.xcontent.ToXContentFragment;
 import org.opensearch.core.xcontent.XContentBuilder;
 import org.opensearch.semver.expr.Caret;
@@ -31,7 +32,10 @@
  *     <li>'~' Allows for patch version variability starting from the range version. For example, ~1.2.3 range would match versions greater than or equal to 1.2.3 but less than 1.3.0</li>
  *     <li>'^' Allows for patch and minor version variability starting from the range version. For example, ^1.2.3 range would match versions greater than or equal to 1.2.3 but less than 2.0.0</li>
  * </ul>
+ *
+ * @opensearch.api
  */
+@PublicApi(since = "2.13.0")
 public class SemverRange implements ToXContentFragment {
 
     private final Version rangeVersion;
diff --git a/release-notes/opensearch.release-notes-2.13.0.md b/release-notes/opensearch.release-notes-2.13.0.md
index 517092564545d..e55c22d6b851d 100644
--- a/release-notes/opensearch.release-notes-2.13.0.md
+++ b/release-notes/opensearch.release-notes-2.13.0.md
@@ -26,6 +26,7 @@
 - Add Remote Store Migration Experimental flag and allow mixed mode clusters under same ([#11986](https://github.com/opensearch-project/OpenSearch/pull/11986))
 - Built-in secure transports support ([#12435](https://github.com/opensearch-project/OpenSearch/pull/12435))
 - Lightweight Transport action to verify local term before fetching cluster-state from remote ([#12252](https://github.com/opensearch-project/OpenSearch/pull/12252/))
+- Integrate with admission controller for cluster-manager Read API. ([#12496](https://github.com/opensearch-project/OpenSearch/pull/12496))
 
 ### Dependencies
 - Bump `com.squareup.okio:okio` from 3.7.0 to 3.8.0 ([#12290](https://github.com/opensearch-project/OpenSearch/pull/12290))
diff --git a/server/build.gradle b/server/build.gradle
index e36498bf1038b..bbbe93bd6e517 100644
--- a/server/build.gradle
+++ b/server/build.gradle
@@ -141,7 +141,7 @@ tasks.withType(JavaCompile).configureEach {
 
 compileJava {
   options.compilerArgs += ['-processor', ['org.apache.logging.log4j.core.config.plugins.processor.PluginProcessor',
-    'org.opensearch.common.annotation.processor.ApiAnnotationProcessor'].join(','), '-AcontinueOnFailingChecks']
+    'org.opensearch.common.annotation.processor.ApiAnnotationProcessor'].join(',')]
 }
 
 tasks.named("internalClusterTest").configure {
diff --git a/server/src/internalClusterTest/java/org/opensearch/cluster/state/FetchByTermVersionIT.java b/server/src/internalClusterTest/java/org/opensearch/action/support/clustermanager/term/FetchByTermVersionIT.java
similarity index 97%
rename from server/src/internalClusterTest/java/org/opensearch/cluster/state/FetchByTermVersionIT.java
rename to server/src/internalClusterTest/java/org/opensearch/action/support/clustermanager/term/FetchByTermVersionIT.java
index cef184b3fddf9..72dcc98dcdc12 100644
--- a/server/src/internalClusterTest/java/org/opensearch/cluster/state/FetchByTermVersionIT.java
+++ b/server/src/internalClusterTest/java/org/opensearch/action/support/clustermanager/term/FetchByTermVersionIT.java
@@ -6,12 +6,10 @@
  * compatible open source license.
  */
 
-package org.opensearch.cluster.state;
+package org.opensearch.action.support.clustermanager.term;
 
 import org.opensearch.action.admin.cluster.state.ClusterStateRequest;
 import org.opensearch.action.admin.cluster.state.ClusterStateResponse;
-import org.opensearch.action.admin.cluster.state.term.GetTermVersionAction;
-import org.opensearch.action.admin.cluster.state.term.GetTermVersionResponse;
 import org.opensearch.action.admin.indices.mapping.put.PutMappingRequest;
 import org.opensearch.cluster.ClusterName;
 import org.opensearch.cluster.coordination.ClusterStateTermVersion;
diff --git a/server/src/internalClusterTest/java/org/opensearch/search/nested/SimpleNestedExplainIT.java b/server/src/internalClusterTest/java/org/opensearch/search/nested/SimpleNestedExplainIT.java
index a6554271a0bc5..2efec6a63e6c1 100644
--- a/server/src/internalClusterTest/java/org/opensearch/search/nested/SimpleNestedExplainIT.java
+++ b/server/src/internalClusterTest/java/org/opensearch/search/nested/SimpleNestedExplainIT.java
@@ -30,6 +30,11 @@
  */
 public class SimpleNestedExplainIT extends OpenSearchIntegTestCase {
 
+    @Override
+    protected int numberOfShards() {
+        return 1;
+    }
+
     /*
      * Tests the explain output for multiple docs. Concurrent search with multiple slices is tested
      * here as call to indexRandomForMultipleSlices is made and compared with explain output for
@@ -70,7 +75,23 @@ public void testExplainMultipleDocs() throws Exception {
             .setRefreshPolicy(IMMEDIATE)
             .get();
 
-        indexRandomForMultipleSlices("test");
+        client().prepareIndex("test")
+            .setId("2")
+            .setSource(
+                jsonBuilder().startObject()
+                    .field("field1", "value2")
+                    .startArray("nested1")
+                    .startObject()
+                    .field("n_field1", "n_value2")
+                    .endObject()
+                    .startObject()
+                    .field("n_field1", "n_value2")
+                    .endObject()
+                    .endArray()
+                    .endObject()
+            )
+            .setRefreshPolicy(IMMEDIATE)
+            .get();
 
         // Turn off the concurrent search setting to test search with non-concurrent search
         client().admin()
diff --git a/server/src/main/java/org/opensearch/action/ActionModule.java b/server/src/main/java/org/opensearch/action/ActionModule.java
index f827b7f3f0097..5e2b62614fc47 100644
--- a/server/src/main/java/org/opensearch/action/ActionModule.java
+++ b/server/src/main/java/org/opensearch/action/ActionModule.java
@@ -107,8 +107,6 @@
 import org.opensearch.action.admin.cluster.snapshots.status.TransportSnapshotsStatusAction;
 import org.opensearch.action.admin.cluster.state.ClusterStateAction;
 import org.opensearch.action.admin.cluster.state.TransportClusterStateAction;
-import org.opensearch.action.admin.cluster.state.term.GetTermVersionAction;
-import org.opensearch.action.admin.cluster.state.term.TransportGetTermVersionAction;
 import org.opensearch.action.admin.cluster.stats.ClusterStatsAction;
 import org.opensearch.action.admin.cluster.stats.TransportClusterStatsAction;
 import org.opensearch.action.admin.cluster.storedscripts.DeleteStoredScriptAction;
@@ -283,6 +281,8 @@
 import org.opensearch.action.support.AutoCreateIndex;
 import org.opensearch.action.support.DestructiveOperations;
 import org.opensearch.action.support.TransportAction;
+import org.opensearch.action.support.clustermanager.term.GetTermVersionAction;
+import org.opensearch.action.support.clustermanager.term.TransportGetTermVersionAction;
 import org.opensearch.action.termvectors.MultiTermVectorsAction;
 import org.opensearch.action.termvectors.TermVectorsAction;
 import org.opensearch.action.termvectors.TransportMultiTermVectorsAction;
@@ -294,6 +294,7 @@
 import org.opensearch.cluster.metadata.IndexNameExpressionResolver;
 import org.opensearch.cluster.node.DiscoveryNodes;
 import org.opensearch.common.NamedRegistry;
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.AbstractModule;
 import org.opensearch.common.inject.TypeLiteral;
 import org.opensearch.common.inject.multibindings.MapBinder;
@@ -1052,8 +1053,9 @@ public RestController getRestController() {
      * <p>
      * This class is modeled after {@link NamedRegistry} but provides both register and unregister capabilities.
      *
-     * @opensearch.internal
+     * @opensearch.api
      */
+    @PublicApi(since = "2.7.0")
     public static class DynamicActionRegistry {
         // This is the unmodifiable actions map created during node bootstrap, which
         // will continue to link ActionType and TransportAction pairs from core and plugin
diff --git a/server/src/main/java/org/opensearch/action/ActionRequest.java b/server/src/main/java/org/opensearch/action/ActionRequest.java
index 5313a05ad6fae..7ab87065bef7e 100644
--- a/server/src/main/java/org/opensearch/action/ActionRequest.java
+++ b/server/src/main/java/org/opensearch/action/ActionRequest.java
@@ -32,6 +32,7 @@
 
 package org.opensearch.action;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.core.common.io.stream.StreamInput;
 import org.opensearch.core.common.io.stream.StreamOutput;
 import org.opensearch.transport.TransportRequest;
@@ -43,6 +44,7 @@
  *
  * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public abstract class ActionRequest extends TransportRequest {
 
     public ActionRequest() {
diff --git a/server/src/main/java/org/opensearch/action/ActionType.java b/server/src/main/java/org/opensearch/action/ActionType.java
index dae931bdd1891..559dad73536e1 100644
--- a/server/src/main/java/org/opensearch/action/ActionType.java
+++ b/server/src/main/java/org/opensearch/action/ActionType.java
@@ -32,6 +32,7 @@
 
 package org.opensearch.action;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.settings.Settings;
 import org.opensearch.core.action.ActionResponse;
 import org.opensearch.core.common.io.stream.StreamInput;
@@ -43,6 +44,7 @@
  *
  * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public class ActionType<Response extends ActionResponse> {
 
     private final String name;
diff --git a/server/src/main/java/org/opensearch/action/support/TransportAction.java b/server/src/main/java/org/opensearch/action/support/TransportAction.java
index 72aae210d61ae..f71347f6f1d07 100644
--- a/server/src/main/java/org/opensearch/action/support/TransportAction.java
+++ b/server/src/main/java/org/opensearch/action/support/TransportAction.java
@@ -36,6 +36,7 @@
 import org.apache.logging.log4j.Logger;
 import org.opensearch.action.ActionRequest;
 import org.opensearch.action.ActionRequestValidationException;
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.lease.Releasable;
 import org.opensearch.common.lease.Releasables;
 import org.opensearch.common.util.concurrent.ThreadContext;
@@ -52,8 +53,9 @@
 /**
  * Base class for a transport action
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public abstract class TransportAction<Request extends ActionRequest, Response extends ActionResponse> {
 
     public final String actionName;
diff --git a/server/src/main/java/org/opensearch/action/support/clustermanager/ClusterManagerNodeRequest.java b/server/src/main/java/org/opensearch/action/support/clustermanager/ClusterManagerNodeRequest.java
index a43d6fb0b1e7a..03fc41e829e3d 100644
--- a/server/src/main/java/org/opensearch/action/support/clustermanager/ClusterManagerNodeRequest.java
+++ b/server/src/main/java/org/opensearch/action/support/clustermanager/ClusterManagerNodeRequest.java
@@ -33,6 +33,7 @@
 package org.opensearch.action.support.clustermanager;
 
 import org.opensearch.action.ActionRequest;
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.unit.TimeValue;
 import org.opensearch.core.common.io.stream.StreamInput;
 import org.opensearch.core.common.io.stream.StreamOutput;
@@ -42,8 +43,9 @@
 /**
  * A based request for cluster-manager based operation.
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public abstract class ClusterManagerNodeRequest<Request extends ClusterManagerNodeRequest<Request>> extends ActionRequest {
 
     public static final TimeValue DEFAULT_CLUSTER_MANAGER_NODE_TIMEOUT = TimeValue.timeValueSeconds(30);
diff --git a/server/src/main/java/org/opensearch/action/support/clustermanager/TransportClusterManagerNodeAction.java b/server/src/main/java/org/opensearch/action/support/clustermanager/TransportClusterManagerNodeAction.java
index 5f57658e33924..080b0d607e991 100644
--- a/server/src/main/java/org/opensearch/action/support/clustermanager/TransportClusterManagerNodeAction.java
+++ b/server/src/main/java/org/opensearch/action/support/clustermanager/TransportClusterManagerNodeAction.java
@@ -37,13 +37,13 @@
 import org.apache.logging.log4j.message.ParameterizedMessage;
 import org.opensearch.action.ActionListenerResponseHandler;
 import org.opensearch.action.ActionRunnable;
-import org.opensearch.action.admin.cluster.state.term.GetTermVersionAction;
-import org.opensearch.action.admin.cluster.state.term.GetTermVersionRequest;
-import org.opensearch.action.admin.cluster.state.term.GetTermVersionResponse;
 import org.opensearch.action.bulk.BackoffPolicy;
 import org.opensearch.action.support.ActionFilters;
 import org.opensearch.action.support.HandledTransportAction;
 import org.opensearch.action.support.RetryableAction;
+import org.opensearch.action.support.clustermanager.term.GetTermVersionAction;
+import org.opensearch.action.support.clustermanager.term.GetTermVersionRequest;
+import org.opensearch.action.support.clustermanager.term.GetTermVersionResponse;
 import org.opensearch.cluster.ClusterManagerNodeChangePredicate;
 import org.opensearch.cluster.ClusterState;
 import org.opensearch.cluster.ClusterStateObserver;
diff --git a/server/src/main/java/org/opensearch/action/admin/cluster/state/term/GetTermVersionAction.java b/server/src/main/java/org/opensearch/action/support/clustermanager/term/GetTermVersionAction.java
similarity index 83%
rename from server/src/main/java/org/opensearch/action/admin/cluster/state/term/GetTermVersionAction.java
rename to server/src/main/java/org/opensearch/action/support/clustermanager/term/GetTermVersionAction.java
index 3344fd549b23f..2401dddd0cab3 100644
--- a/server/src/main/java/org/opensearch/action/admin/cluster/state/term/GetTermVersionAction.java
+++ b/server/src/main/java/org/opensearch/action/support/clustermanager/term/GetTermVersionAction.java
@@ -6,7 +6,7 @@
  * compatible open source license.
  */
 
-package org.opensearch.action.admin.cluster.state.term;
+package org.opensearch.action.support.clustermanager.term;
 
 import org.opensearch.action.ActionType;
 
@@ -18,7 +18,7 @@
 public class GetTermVersionAction extends ActionType<GetTermVersionResponse> {
 
     public static final GetTermVersionAction INSTANCE = new GetTermVersionAction();
-    public static final String NAME = "cluster:monitor/term";
+    public static final String NAME = "internal:monitor/term";
 
     private GetTermVersionAction() {
         super(NAME, GetTermVersionResponse::new);
diff --git a/server/src/main/java/org/opensearch/action/admin/cluster/state/term/GetTermVersionRequest.java b/server/src/main/java/org/opensearch/action/support/clustermanager/term/GetTermVersionRequest.java
similarity index 93%
rename from server/src/main/java/org/opensearch/action/admin/cluster/state/term/GetTermVersionRequest.java
rename to server/src/main/java/org/opensearch/action/support/clustermanager/term/GetTermVersionRequest.java
index b099f8087bd15..507997a1f7e7a 100644
--- a/server/src/main/java/org/opensearch/action/admin/cluster/state/term/GetTermVersionRequest.java
+++ b/server/src/main/java/org/opensearch/action/support/clustermanager/term/GetTermVersionRequest.java
@@ -6,7 +6,7 @@
  * compatible open source license.
  */
 
-package org.opensearch.action.admin.cluster.state.term;
+package org.opensearch.action.support.clustermanager.term;
 
 import org.opensearch.action.ActionRequestValidationException;
 import org.opensearch.action.support.clustermanager.ClusterManagerNodeReadRequest;
diff --git a/server/src/main/java/org/opensearch/action/admin/cluster/state/term/GetTermVersionResponse.java b/server/src/main/java/org/opensearch/action/support/clustermanager/term/GetTermVersionResponse.java
similarity index 96%
rename from server/src/main/java/org/opensearch/action/admin/cluster/state/term/GetTermVersionResponse.java
rename to server/src/main/java/org/opensearch/action/support/clustermanager/term/GetTermVersionResponse.java
index 16b355a80d1f2..0906abe57d547 100644
--- a/server/src/main/java/org/opensearch/action/admin/cluster/state/term/GetTermVersionResponse.java
+++ b/server/src/main/java/org/opensearch/action/support/clustermanager/term/GetTermVersionResponse.java
@@ -6,7 +6,7 @@
  * compatible open source license.
  */
 
-package org.opensearch.action.admin.cluster.state.term;
+package org.opensearch.action.support.clustermanager.term;
 
 import org.opensearch.cluster.ClusterState;
 import org.opensearch.cluster.coordination.ClusterStateTermVersion;
diff --git a/server/src/main/java/org/opensearch/action/admin/cluster/state/term/TransportGetTermVersionAction.java b/server/src/main/java/org/opensearch/action/support/clustermanager/term/TransportGetTermVersionAction.java
similarity index 97%
rename from server/src/main/java/org/opensearch/action/admin/cluster/state/term/TransportGetTermVersionAction.java
rename to server/src/main/java/org/opensearch/action/support/clustermanager/term/TransportGetTermVersionAction.java
index 88305252aa99c..4752a99c910e4 100644
--- a/server/src/main/java/org/opensearch/action/admin/cluster/state/term/TransportGetTermVersionAction.java
+++ b/server/src/main/java/org/opensearch/action/support/clustermanager/term/TransportGetTermVersionAction.java
@@ -6,7 +6,7 @@
  * compatible open source license.
  */
 
-package org.opensearch.action.admin.cluster.state.term;
+package org.opensearch.action.support.clustermanager.term;
 
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
diff --git a/server/src/main/java/org/opensearch/action/admin/cluster/state/term/package-info.java b/server/src/main/java/org/opensearch/action/support/clustermanager/term/package-info.java
similarity index 80%
rename from server/src/main/java/org/opensearch/action/admin/cluster/state/term/package-info.java
rename to server/src/main/java/org/opensearch/action/support/clustermanager/term/package-info.java
index 0ee559c527d7d..229c405df2d7c 100644
--- a/server/src/main/java/org/opensearch/action/admin/cluster/state/term/package-info.java
+++ b/server/src/main/java/org/opensearch/action/support/clustermanager/term/package-info.java
@@ -7,4 +7,4 @@
  */
 
 /** Cluster Term transport handler. */
-package org.opensearch.action.admin.cluster.state.term;
+package org.opensearch.action.support.clustermanager.term;
diff --git a/server/src/main/java/org/opensearch/client/node/NodeClient.java b/server/src/main/java/org/opensearch/client/node/NodeClient.java
index 6e1bb6ce79349..5780e4c1e648a 100644
--- a/server/src/main/java/org/opensearch/client/node/NodeClient.java
+++ b/server/src/main/java/org/opensearch/client/node/NodeClient.java
@@ -39,6 +39,7 @@
 import org.opensearch.client.Client;
 import org.opensearch.client.support.AbstractClient;
 import org.opensearch.cluster.node.DiscoveryNode;
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.settings.Settings;
 import org.opensearch.core.action.ActionListener;
 import org.opensearch.core.action.ActionResponse;
@@ -53,8 +54,9 @@
 /**
  * Client that executes actions on the local node.
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public class NodeClient extends AbstractClient {
 
     private DynamicActionRegistry actionRegistry;
diff --git a/server/src/main/java/org/opensearch/common/blobstore/EncryptedBlobStore.java b/server/src/main/java/org/opensearch/common/blobstore/EncryptedBlobStore.java
index a18ca8b9d5c39..c41641921c822 100644
--- a/server/src/main/java/org/opensearch/common/blobstore/EncryptedBlobStore.java
+++ b/server/src/main/java/org/opensearch/common/blobstore/EncryptedBlobStore.java
@@ -9,6 +9,7 @@
 package org.opensearch.common.blobstore;
 
 import org.opensearch.cluster.metadata.CryptoMetadata;
+import org.opensearch.cluster.metadata.RepositoryMetadata;
 import org.opensearch.common.crypto.CryptoHandler;
 import org.opensearch.crypto.CryptoHandlerRegistry;
 import org.opensearch.crypto.CryptoRegistryException;
@@ -65,6 +66,15 @@ public BlobContainer blobContainer(BlobPath path) {
         return new EncryptedBlobContainer<>(blobContainer, cryptoHandler);
     }
 
+    /**
+     * Reoload blobstore metadata
+     * @param repositoryMetadata new repository metadata
+     */
+    @Override
+    public void reload(RepositoryMetadata repositoryMetadata) {
+        blobStore.reload(repositoryMetadata);
+    }
+
     /**
      * Retrieves statistics about the BlobStore. Delegates the call to the underlying BlobStore's stats() method.
      *
diff --git a/server/src/main/java/org/opensearch/common/cache/RemovalListener.java b/server/src/main/java/org/opensearch/common/cache/RemovalListener.java
index 369313f9f93f4..68e1cdf6139e2 100644
--- a/server/src/main/java/org/opensearch/common/cache/RemovalListener.java
+++ b/server/src/main/java/org/opensearch/common/cache/RemovalListener.java
@@ -32,11 +32,14 @@
 
 package org.opensearch.common.cache;
 
+import org.opensearch.common.annotation.ExperimentalApi;
+
 /**
  * Listener for removing an element from the cache
  *
- * @opensearch.internal
+ * @opensearch.experimental
  */
+@ExperimentalApi
 @FunctionalInterface
 public interface RemovalListener<K, V> {
     void onRemoval(RemovalNotification<K, V> notification);
diff --git a/server/src/main/java/org/opensearch/common/cache/policy/CachedQueryResult.java b/server/src/main/java/org/opensearch/common/cache/policy/CachedQueryResult.java
index 0a98542a05bb7..df698112c60d1 100644
--- a/server/src/main/java/org/opensearch/common/cache/policy/CachedQueryResult.java
+++ b/server/src/main/java/org/opensearch/common/cache/policy/CachedQueryResult.java
@@ -8,6 +8,7 @@
 
 package org.opensearch.common.cache.policy;
 
+import org.opensearch.common.annotation.ExperimentalApi;
 import org.opensearch.core.common.bytes.BytesReference;
 import org.opensearch.core.common.io.stream.NamedWriteableAwareStreamInput;
 import org.opensearch.core.common.io.stream.NamedWriteableRegistry;
@@ -62,7 +63,10 @@ public void writeToNoId(StreamOutput out) throws IOException {
     /**
      * A class containing information needed for all cache policies
      *  to decide whether to admit a given value.
+     *
+     *  @opensearch.experimental
      */
+    @ExperimentalApi
     public static class PolicyValues implements Writeable {
         final long tookTimeNanos;
         // More values can be added here as they're needed for future policies
diff --git a/server/src/main/java/org/opensearch/common/cache/serializer/Serializer.java b/server/src/main/java/org/opensearch/common/cache/serializer/Serializer.java
index 35e28707d1ca3..46a8ed5a72ccf 100644
--- a/server/src/main/java/org/opensearch/common/cache/serializer/Serializer.java
+++ b/server/src/main/java/org/opensearch/common/cache/serializer/Serializer.java
@@ -8,10 +8,15 @@
 
 package org.opensearch.common.cache.serializer;
 
+import org.opensearch.common.annotation.ExperimentalApi;
+
 /**
  * Defines an interface for serializers, to be used by pluggable caches.
  * T is the class of the original object, and U is the serialized class.
+ *
+ * @opensearch.experimental
  */
+@ExperimentalApi
 public interface Serializer<T, U> {
     /**
      * Serializes an object.
diff --git a/server/src/main/java/org/opensearch/common/inject/Binder.java b/server/src/main/java/org/opensearch/common/inject/Binder.java
index a733a19608ac1..a9d16becfb5ab 100644
--- a/server/src/main/java/org/opensearch/common/inject/Binder.java
+++ b/server/src/main/java/org/opensearch/common/inject/Binder.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.binder.AnnotatedBindingBuilder;
 import org.opensearch.common.inject.binder.AnnotatedConstantBindingBuilder;
 import org.opensearch.common.inject.binder.LinkedBindingBuilder;
@@ -198,8 +199,9 @@
  * @author jessewilson@google.com (Jesse Wilson)
  * @author kevinb@google.com (Kevin Bourrillion)
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface Binder {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/Binding.java b/server/src/main/java/org/opensearch/common/inject/Binding.java
index 53d02e37502af..a42237697a1d2 100644
--- a/server/src/main/java/org/opensearch/common/inject/Binding.java
+++ b/server/src/main/java/org/opensearch/common/inject/Binding.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.spi.BindingScopingVisitor;
 import org.opensearch.common.inject.spi.BindingTargetVisitor;
 import org.opensearch.common.inject.spi.Element;
@@ -69,8 +70,9 @@
  * @author crazybob@google.com (Bob Lee)
  * @author jessewilson@google.com (Jesse Wilson)
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface Binding<T> extends Element {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/ConfigurationException.java b/server/src/main/java/org/opensearch/common/inject/ConfigurationException.java
index 4379a93482560..e3a32754a1bdb 100644
--- a/server/src/main/java/org/opensearch/common/inject/ConfigurationException.java
+++ b/server/src/main/java/org/opensearch/common/inject/ConfigurationException.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.internal.Errors;
 import org.opensearch.common.inject.spi.Message;
 
@@ -46,8 +47,9 @@
  * @author jessewilson@google.com (Jesse Wilson)
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public final class ConfigurationException extends RuntimeException {
     private final Set<Message> messages;
     private Object partialValue = null;
diff --git a/server/src/main/java/org/opensearch/common/inject/Injector.java b/server/src/main/java/org/opensearch/common/inject/Injector.java
index ff212c6313371..772578dd6bb2c 100644
--- a/server/src/main/java/org/opensearch/common/inject/Injector.java
+++ b/server/src/main/java/org/opensearch/common/inject/Injector.java
@@ -29,6 +29,8 @@
 
 package org.opensearch.common.inject;
 
+import org.opensearch.common.annotation.PublicApi;
+
 import java.util.List;
 
 /**
@@ -54,8 +56,9 @@
  * @author crazybob@google.com (Bob Lee)
  * @author jessewilson@google.com (Jesse Wilson)
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface Injector {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/Key.java b/server/src/main/java/org/opensearch/common/inject/Key.java
index cd305353a555d..32f168d18e523 100644
--- a/server/src/main/java/org/opensearch/common/inject/Key.java
+++ b/server/src/main/java/org/opensearch/common/inject/Key.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.internal.Annotations;
 import org.opensearch.common.inject.internal.MoreTypes;
 import org.opensearch.common.inject.internal.ToStringBuilder;
@@ -59,8 +60,9 @@
  *
  * @author crazybob@google.com (Bob Lee)
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public class Key<T> {
 
     private final AnnotationStrategy annotationStrategy;
diff --git a/server/src/main/java/org/opensearch/common/inject/MembersInjector.java b/server/src/main/java/org/opensearch/common/inject/MembersInjector.java
index 891762375d5a2..872ae883e246b 100644
--- a/server/src/main/java/org/opensearch/common/inject/MembersInjector.java
+++ b/server/src/main/java/org/opensearch/common/inject/MembersInjector.java
@@ -29,6 +29,8 @@
 
 package org.opensearch.common.inject;
 
+import org.opensearch.common.annotation.PublicApi;
+
 /**
  * Injects dependencies into the fields and methods on instances of type {@code T}. Ignores the
  * presence or absence of an injectable constructor.
@@ -38,8 +40,9 @@
  * @author jessewilson@google.com (Jesse Wilson)
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface MembersInjector<T> {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/Module.java b/server/src/main/java/org/opensearch/common/inject/Module.java
index b1fc031192ea0..e66044ff26c40 100644
--- a/server/src/main/java/org/opensearch/common/inject/Module.java
+++ b/server/src/main/java/org/opensearch/common/inject/Module.java
@@ -29,6 +29,8 @@
 
 package org.opensearch.common.inject;
 
+import org.opensearch.common.annotation.PublicApi;
+
 /**
  * A module contributes configuration information, typically interface
  * bindings, which will be used to create an {@link Injector}. A Guice-based
@@ -43,8 +45,9 @@
  * Use scope and binding annotations on these methods to configure the
  * bindings.
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface Module {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/PrivateBinder.java b/server/src/main/java/org/opensearch/common/inject/PrivateBinder.java
index 87635880e29d8..2b6b2e0aad146 100644
--- a/server/src/main/java/org/opensearch/common/inject/PrivateBinder.java
+++ b/server/src/main/java/org/opensearch/common/inject/PrivateBinder.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.binder.AnnotatedElementBuilder;
 
 /**
@@ -38,8 +39,9 @@
  * @author jessewilson@google.com (Jesse Wilson)
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface PrivateBinder extends Binder {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/Provider.java b/server/src/main/java/org/opensearch/common/inject/Provider.java
index 97f9e9ae503cd..988143b328828 100644
--- a/server/src/main/java/org/opensearch/common/inject/Provider.java
+++ b/server/src/main/java/org/opensearch/common/inject/Provider.java
@@ -29,6 +29,8 @@
 
 package org.opensearch.common.inject;
 
+import org.opensearch.common.annotation.PublicApi;
+
 /**
  * An object capable of providing instances of type {@code T}. Providers are used in numerous ways
  * by Guice:
@@ -50,8 +52,9 @@
  * @param <T> the type of object this provides
  * @author crazybob@google.com (Bob Lee)
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface Provider<T> {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/Scope.java b/server/src/main/java/org/opensearch/common/inject/Scope.java
index a21495f522d5e..6fb9f560981ef 100644
--- a/server/src/main/java/org/opensearch/common/inject/Scope.java
+++ b/server/src/main/java/org/opensearch/common/inject/Scope.java
@@ -29,6 +29,8 @@
 
 package org.opensearch.common.inject;
 
+import org.opensearch.common.annotation.PublicApi;
+
 /**
  * A scope is a level of visibility that instances provided by Guice may have.
  * By default, an instance created by the {@link Injector} has <i>no scope</i>,
@@ -42,8 +44,9 @@
  *
  * @author crazybob@google.com (Bob Lee)
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface Scope {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/Stage.java b/server/src/main/java/org/opensearch/common/inject/Stage.java
index d5996bd1363e9..fbb6e389ef43f 100644
--- a/server/src/main/java/org/opensearch/common/inject/Stage.java
+++ b/server/src/main/java/org/opensearch/common/inject/Stage.java
@@ -29,13 +29,16 @@
 
 package org.opensearch.common.inject;
 
+import org.opensearch.common.annotation.PublicApi;
+
 /**
  * The stage we're running in.
  *
  * @author crazybob@google.com (Bob Lee)
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public enum Stage {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/TypeLiteral.java b/server/src/main/java/org/opensearch/common/inject/TypeLiteral.java
index f0cca2990b407..8ac04e5d0ac1d 100644
--- a/server/src/main/java/org/opensearch/common/inject/TypeLiteral.java
+++ b/server/src/main/java/org/opensearch/common/inject/TypeLiteral.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.internal.MoreTypes;
 import org.opensearch.common.inject.util.Types;
 
@@ -77,8 +78,9 @@
  * @author crazybob@google.com (Bob Lee)
  * @author jessewilson@google.com (Jesse Wilson)
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public class TypeLiteral<T> {
 
     final Class<? super T> rawType;
diff --git a/server/src/main/java/org/opensearch/common/inject/binder/AnnotatedBindingBuilder.java b/server/src/main/java/org/opensearch/common/inject/binder/AnnotatedBindingBuilder.java
index bcd593a8cbf7b..5c3c6eac9bd3a 100644
--- a/server/src/main/java/org/opensearch/common/inject/binder/AnnotatedBindingBuilder.java
+++ b/server/src/main/java/org/opensearch/common/inject/binder/AnnotatedBindingBuilder.java
@@ -29,6 +29,8 @@
 
 package org.opensearch.common.inject.binder;
 
+import org.opensearch.common.annotation.PublicApi;
+
 import java.lang.annotation.Annotation;
 
 /**
@@ -36,8 +38,9 @@
  *
  * @author crazybob@google.com (Bob Lee)
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface AnnotatedBindingBuilder<T> extends LinkedBindingBuilder<T> {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/binder/AnnotatedConstantBindingBuilder.java b/server/src/main/java/org/opensearch/common/inject/binder/AnnotatedConstantBindingBuilder.java
index 42c208a2b37ea..71ea1ba0a5207 100644
--- a/server/src/main/java/org/opensearch/common/inject/binder/AnnotatedConstantBindingBuilder.java
+++ b/server/src/main/java/org/opensearch/common/inject/binder/AnnotatedConstantBindingBuilder.java
@@ -29,6 +29,8 @@
 
 package org.opensearch.common.inject.binder;
 
+import org.opensearch.common.annotation.PublicApi;
+
 import java.lang.annotation.Annotation;
 
 /**
@@ -36,8 +38,9 @@
  *
  * @author crazybob@google.com (Bob Lee)
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface AnnotatedConstantBindingBuilder {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/binder/AnnotatedElementBuilder.java b/server/src/main/java/org/opensearch/common/inject/binder/AnnotatedElementBuilder.java
index f2d0916790b6b..54fcb915d83c9 100644
--- a/server/src/main/java/org/opensearch/common/inject/binder/AnnotatedElementBuilder.java
+++ b/server/src/main/java/org/opensearch/common/inject/binder/AnnotatedElementBuilder.java
@@ -29,6 +29,8 @@
 
 package org.opensearch.common.inject.binder;
 
+import org.opensearch.common.annotation.PublicApi;
+
 import java.lang.annotation.Annotation;
 
 /**
@@ -37,8 +39,9 @@
  * @author jessewilson@google.com (Jesse Wilson)
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface AnnotatedElementBuilder {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/binder/ConstantBindingBuilder.java b/server/src/main/java/org/opensearch/common/inject/binder/ConstantBindingBuilder.java
index 595c477d3e28b..feaee3ed59f46 100644
--- a/server/src/main/java/org/opensearch/common/inject/binder/ConstantBindingBuilder.java
+++ b/server/src/main/java/org/opensearch/common/inject/binder/ConstantBindingBuilder.java
@@ -29,11 +29,14 @@
 
 package org.opensearch.common.inject.binder;
 
+import org.opensearch.common.annotation.PublicApi;
+
 /**
  * Binds to a constant value.
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface ConstantBindingBuilder {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/binder/LinkedBindingBuilder.java b/server/src/main/java/org/opensearch/common/inject/binder/LinkedBindingBuilder.java
index 2368fef16471c..e8c4b197253b5 100644
--- a/server/src/main/java/org/opensearch/common/inject/binder/LinkedBindingBuilder.java
+++ b/server/src/main/java/org/opensearch/common/inject/binder/LinkedBindingBuilder.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject.binder;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.Key;
 import org.opensearch.common.inject.Provider;
 import org.opensearch.common.inject.TypeLiteral;
@@ -38,8 +39,9 @@
  *
  * @author crazybob@google.com (Bob Lee)
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface LinkedBindingBuilder<T> extends ScopedBindingBuilder {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/binder/ScopedBindingBuilder.java b/server/src/main/java/org/opensearch/common/inject/binder/ScopedBindingBuilder.java
index 73dd4414f17a2..c360b9571bc4a 100644
--- a/server/src/main/java/org/opensearch/common/inject/binder/ScopedBindingBuilder.java
+++ b/server/src/main/java/org/opensearch/common/inject/binder/ScopedBindingBuilder.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject.binder;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.Scope;
 
 import java.lang.annotation.Annotation;
@@ -38,8 +39,9 @@
  *
  * @author crazybob@google.com (Bob Lee)
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface ScopedBindingBuilder {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/matcher/Matcher.java b/server/src/main/java/org/opensearch/common/inject/matcher/Matcher.java
index 21bb63cfef097..4e254f8641350 100644
--- a/server/src/main/java/org/opensearch/common/inject/matcher/Matcher.java
+++ b/server/src/main/java/org/opensearch/common/inject/matcher/Matcher.java
@@ -29,13 +29,16 @@
 
 package org.opensearch.common.inject.matcher;
 
+import org.opensearch.common.annotation.PublicApi;
+
 /**
  * Returns {@code true} or {@code false} for a given input.
  *
  * @author crazybob@google.com (Bob Lee)
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface Matcher<T> {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/spi/BindingScopingVisitor.java b/server/src/main/java/org/opensearch/common/inject/spi/BindingScopingVisitor.java
index d7c7d9d65051d..b4fbdf2fdb72b 100644
--- a/server/src/main/java/org/opensearch/common/inject/spi/BindingScopingVisitor.java
+++ b/server/src/main/java/org/opensearch/common/inject/spi/BindingScopingVisitor.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject.spi;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.Scope;
 
 import java.lang.annotation.Annotation;
@@ -40,8 +41,9 @@
  *            {@code return null} if no return type is needed.
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface BindingScopingVisitor<V> {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/spi/BindingTargetVisitor.java b/server/src/main/java/org/opensearch/common/inject/spi/BindingTargetVisitor.java
index 91df812b58ac4..9543e731308bd 100644
--- a/server/src/main/java/org/opensearch/common/inject/spi/BindingTargetVisitor.java
+++ b/server/src/main/java/org/opensearch/common/inject/spi/BindingTargetVisitor.java
@@ -29,6 +29,8 @@
 
 package org.opensearch.common.inject.spi;
 
+import org.opensearch.common.annotation.PublicApi;
+
 /**
  * Visits each of the strategies used to find an instance to satisfy an injection.
  *
@@ -36,8 +38,9 @@
  *            {@code return null} if no return type is needed.
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface BindingTargetVisitor<T, V> {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/spi/ConstructorBinding.java b/server/src/main/java/org/opensearch/common/inject/spi/ConstructorBinding.java
index 997bf78234fd1..8eec6cefe53c7 100644
--- a/server/src/main/java/org/opensearch/common/inject/spi/ConstructorBinding.java
+++ b/server/src/main/java/org/opensearch/common/inject/spi/ConstructorBinding.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject.spi;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.Binding;
 
 import java.util.Set;
@@ -40,8 +41,9 @@
  * @author jessewilson@google.com (Jesse Wilson)
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface ConstructorBinding<T> extends Binding<T>, HasDependencies {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/spi/ConvertedConstantBinding.java b/server/src/main/java/org/opensearch/common/inject/spi/ConvertedConstantBinding.java
index e8d6b346f8596..a07da68a88931 100644
--- a/server/src/main/java/org/opensearch/common/inject/spi/ConvertedConstantBinding.java
+++ b/server/src/main/java/org/opensearch/common/inject/spi/ConvertedConstantBinding.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject.spi;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.Binding;
 import org.opensearch.common.inject.Key;
 
@@ -41,8 +42,9 @@
  * @author jessewilson@google.com (Jesse Wilson)
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface ConvertedConstantBinding<T> extends Binding<T>, HasDependencies {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/spi/Dependency.java b/server/src/main/java/org/opensearch/common/inject/spi/Dependency.java
index be1336ad0f297..e541ba0b73bf5 100644
--- a/server/src/main/java/org/opensearch/common/inject/spi/Dependency.java
+++ b/server/src/main/java/org/opensearch/common/inject/spi/Dependency.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject.spi;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.Key;
 
 import java.util.HashSet;
@@ -47,8 +48,9 @@
  * @author jessewilson@google.com (Jesse Wilson)
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public final class Dependency<T> {
     private final InjectionPoint injectionPoint;
     private final Key<T> key;
diff --git a/server/src/main/java/org/opensearch/common/inject/spi/Element.java b/server/src/main/java/org/opensearch/common/inject/spi/Element.java
index 660aca1bd45ab..58a696fb7ffa9 100644
--- a/server/src/main/java/org/opensearch/common/inject/spi/Element.java
+++ b/server/src/main/java/org/opensearch/common/inject/spi/Element.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject.spi;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.Binder;
 
 /**
@@ -43,8 +44,9 @@
  * @author crazybob@google.com (Bob Lee)
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface Element {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/spi/ElementVisitor.java b/server/src/main/java/org/opensearch/common/inject/spi/ElementVisitor.java
index d415560fc03c8..b88f11b9378aa 100644
--- a/server/src/main/java/org/opensearch/common/inject/spi/ElementVisitor.java
+++ b/server/src/main/java/org/opensearch/common/inject/spi/ElementVisitor.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject.spi;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.Binding;
 
 /**
@@ -38,8 +39,9 @@
  *            {@code return null} if no return type is needed.
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface ElementVisitor<V> {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/spi/ExposedBinding.java b/server/src/main/java/org/opensearch/common/inject/spi/ExposedBinding.java
index d2563bc2728cd..6c1679432abe5 100644
--- a/server/src/main/java/org/opensearch/common/inject/spi/ExposedBinding.java
+++ b/server/src/main/java/org/opensearch/common/inject/spi/ExposedBinding.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject.spi;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.Binder;
 import org.opensearch.common.inject.Binding;
 
@@ -38,8 +39,9 @@
  * @author jessewilson@google.com (Jesse Wilson)
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface ExposedBinding<T> extends Binding<T>, HasDependencies {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/spi/InjectionListener.java b/server/src/main/java/org/opensearch/common/inject/spi/InjectionListener.java
index 7a760d2b84e9f..878e919cda4cc 100644
--- a/server/src/main/java/org/opensearch/common/inject/spi/InjectionListener.java
+++ b/server/src/main/java/org/opensearch/common/inject/spi/InjectionListener.java
@@ -29,6 +29,8 @@
 
 package org.opensearch.common.inject.spi;
 
+import org.opensearch.common.annotation.PublicApi;
+
 /**
  * Listens for injections into instances of type {@code I}. Useful for performing further
  * injections, post-injection initialization, and more.
@@ -37,8 +39,9 @@
  * @author jessewilson@google.com (Jesse Wilson)
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface InjectionListener<I> {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/spi/InjectionPoint.java b/server/src/main/java/org/opensearch/common/inject/spi/InjectionPoint.java
index c88b2281107ed..542cbd780a8b6 100644
--- a/server/src/main/java/org/opensearch/common/inject/spi/InjectionPoint.java
+++ b/server/src/main/java/org/opensearch/common/inject/spi/InjectionPoint.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject.spi;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.ConfigurationException;
 import org.opensearch.common.inject.Inject;
 import org.opensearch.common.inject.Key;
@@ -66,8 +67,9 @@
  * @author crazybob@google.com (Bob Lee)
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public final class InjectionPoint {
 
     private final boolean optional;
diff --git a/server/src/main/java/org/opensearch/common/inject/spi/InjectionRequest.java b/server/src/main/java/org/opensearch/common/inject/spi/InjectionRequest.java
index 6ce5febbb6711..a5faca6264424 100644
--- a/server/src/main/java/org/opensearch/common/inject/spi/InjectionRequest.java
+++ b/server/src/main/java/org/opensearch/common/inject/spi/InjectionRequest.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject.spi;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.Binder;
 import org.opensearch.common.inject.ConfigurationException;
 import org.opensearch.common.inject.TypeLiteral;
@@ -46,8 +47,9 @@
  * @author mikeward@google.com (Mike Ward)
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public final class InjectionRequest<T> implements Element {
 
     private final Object source;
diff --git a/server/src/main/java/org/opensearch/common/inject/spi/InstanceBinding.java b/server/src/main/java/org/opensearch/common/inject/spi/InstanceBinding.java
index fd7c1303ed6fc..f73b284ae2e8c 100644
--- a/server/src/main/java/org/opensearch/common/inject/spi/InstanceBinding.java
+++ b/server/src/main/java/org/opensearch/common/inject/spi/InstanceBinding.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject.spi;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.Binding;
 
 import java.util.Set;
@@ -39,8 +40,9 @@
  * @author jessewilson@google.com (Jesse Wilson)
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface InstanceBinding<T> extends Binding<T>, HasDependencies {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/spi/LinkedKeyBinding.java b/server/src/main/java/org/opensearch/common/inject/spi/LinkedKeyBinding.java
index 10b270e499603..01da905f8da47 100644
--- a/server/src/main/java/org/opensearch/common/inject/spi/LinkedKeyBinding.java
+++ b/server/src/main/java/org/opensearch/common/inject/spi/LinkedKeyBinding.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject.spi;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.Binding;
 import org.opensearch.common.inject.Key;
 
@@ -38,8 +39,9 @@
  * @author jessewilson@google.com (Jesse Wilson)
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface LinkedKeyBinding<T> extends Binding<T> {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/spi/MembersInjectorLookup.java b/server/src/main/java/org/opensearch/common/inject/spi/MembersInjectorLookup.java
index 1f652708de875..b8a07146812c1 100644
--- a/server/src/main/java/org/opensearch/common/inject/spi/MembersInjectorLookup.java
+++ b/server/src/main/java/org/opensearch/common/inject/spi/MembersInjectorLookup.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject.spi;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.Binder;
 import org.opensearch.common.inject.MembersInjector;
 import org.opensearch.common.inject.TypeLiteral;
@@ -45,8 +46,9 @@
  * @author crazybob@google.com (Bob Lee)
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public final class MembersInjectorLookup<T> implements Element {
 
     private final Object source;
diff --git a/server/src/main/java/org/opensearch/common/inject/spi/Message.java b/server/src/main/java/org/opensearch/common/inject/spi/Message.java
index 78829e82c150e..13184a7d82f0c 100644
--- a/server/src/main/java/org/opensearch/common/inject/spi/Message.java
+++ b/server/src/main/java/org/opensearch/common/inject/spi/Message.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject.spi;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.Binder;
 import org.opensearch.common.inject.internal.Errors;
 import org.opensearch.common.inject.internal.SourceProvider;
@@ -50,8 +51,9 @@
  *
  * @author crazybob@google.com (Bob Lee)
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public final class Message implements Element {
     private final String message;
     private final Throwable cause;
diff --git a/server/src/main/java/org/opensearch/common/inject/spi/PrivateElements.java b/server/src/main/java/org/opensearch/common/inject/spi/PrivateElements.java
index e4d86a356cd53..6330cbe33de58 100644
--- a/server/src/main/java/org/opensearch/common/inject/spi/PrivateElements.java
+++ b/server/src/main/java/org/opensearch/common/inject/spi/PrivateElements.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject.spi;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.Injector;
 import org.opensearch.common.inject.Key;
 
@@ -42,8 +43,9 @@
  * @author jessewilson@google.com (Jesse Wilson)
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface PrivateElements extends Element {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/spi/ProviderBinding.java b/server/src/main/java/org/opensearch/common/inject/spi/ProviderBinding.java
index 0a63fefc0a9e9..dd55e9805843f 100644
--- a/server/src/main/java/org/opensearch/common/inject/spi/ProviderBinding.java
+++ b/server/src/main/java/org/opensearch/common/inject/spi/ProviderBinding.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject.spi;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.Binding;
 import org.opensearch.common.inject.Key;
 import org.opensearch.common.inject.Provider;
@@ -40,8 +41,9 @@
  * @author jessewilson@google.com (Jesse Wilson)
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface ProviderBinding<T extends Provider<?>> extends Binding<T> {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/spi/ProviderInstanceBinding.java b/server/src/main/java/org/opensearch/common/inject/spi/ProviderInstanceBinding.java
index 654f40e627e4b..25bac3b5df34c 100644
--- a/server/src/main/java/org/opensearch/common/inject/spi/ProviderInstanceBinding.java
+++ b/server/src/main/java/org/opensearch/common/inject/spi/ProviderInstanceBinding.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject.spi;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.Binding;
 import org.opensearch.common.inject.Provider;
 
@@ -41,8 +42,9 @@
  * @author jessewilson@google.com (Jesse Wilson)
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface ProviderInstanceBinding<T> extends Binding<T>, HasDependencies {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/spi/ProviderKeyBinding.java b/server/src/main/java/org/opensearch/common/inject/spi/ProviderKeyBinding.java
index 6f1ae8f2b9a03..f68e1662ad124 100644
--- a/server/src/main/java/org/opensearch/common/inject/spi/ProviderKeyBinding.java
+++ b/server/src/main/java/org/opensearch/common/inject/spi/ProviderKeyBinding.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject.spi;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.Binding;
 import org.opensearch.common.inject.Key;
 import org.opensearch.common.inject.Provider;
@@ -40,8 +41,9 @@
  * @author jessewilson@google.com (Jesse Wilson)
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface ProviderKeyBinding<T> extends Binding<T> {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/spi/ProviderLookup.java b/server/src/main/java/org/opensearch/common/inject/spi/ProviderLookup.java
index 16060ddd3e222..6afe7346a1431 100644
--- a/server/src/main/java/org/opensearch/common/inject/spi/ProviderLookup.java
+++ b/server/src/main/java/org/opensearch/common/inject/spi/ProviderLookup.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject.spi;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.Binder;
 import org.opensearch.common.inject.Key;
 import org.opensearch.common.inject.Provider;
@@ -45,8 +46,9 @@
  * @author jessewilson@google.com (Jesse Wilson)
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public final class ProviderLookup<T> implements Element {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/spi/ScopeBinding.java b/server/src/main/java/org/opensearch/common/inject/spi/ScopeBinding.java
index 7a619456e06e3..ca03f4291a062 100644
--- a/server/src/main/java/org/opensearch/common/inject/spi/ScopeBinding.java
+++ b/server/src/main/java/org/opensearch/common/inject/spi/ScopeBinding.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject.spi;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.Binder;
 import org.opensearch.common.inject.Scope;
 
@@ -46,8 +47,9 @@
  * @author jessewilson@google.com (Jesse Wilson)
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public final class ScopeBinding implements Element {
     private final Object source;
     private final Class<? extends Annotation> annotationType;
diff --git a/server/src/main/java/org/opensearch/common/inject/spi/StaticInjectionRequest.java b/server/src/main/java/org/opensearch/common/inject/spi/StaticInjectionRequest.java
index 494e35e6c4490..c426639d85cab 100644
--- a/server/src/main/java/org/opensearch/common/inject/spi/StaticInjectionRequest.java
+++ b/server/src/main/java/org/opensearch/common/inject/spi/StaticInjectionRequest.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject.spi;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.Binder;
 import org.opensearch.common.inject.ConfigurationException;
 
@@ -45,8 +46,9 @@
  * @author jessewilson@google.com (Jesse Wilson)
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public final class StaticInjectionRequest implements Element {
     private final Object source;
     private final Class<?> type;
diff --git a/server/src/main/java/org/opensearch/common/inject/spi/TypeConverter.java b/server/src/main/java/org/opensearch/common/inject/spi/TypeConverter.java
index 93a0f607ddc27..2386c1e528db6 100644
--- a/server/src/main/java/org/opensearch/common/inject/spi/TypeConverter.java
+++ b/server/src/main/java/org/opensearch/common/inject/spi/TypeConverter.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject.spi;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.TypeLiteral;
 
 /**
@@ -37,8 +38,9 @@
  * @author crazybob@google.com (Bob Lee)
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface TypeConverter {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/spi/TypeConverterBinding.java b/server/src/main/java/org/opensearch/common/inject/spi/TypeConverterBinding.java
index 00b8c7c013b5a..59311de0fb3f5 100644
--- a/server/src/main/java/org/opensearch/common/inject/spi/TypeConverterBinding.java
+++ b/server/src/main/java/org/opensearch/common/inject/spi/TypeConverterBinding.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject.spi;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.Binder;
 import org.opensearch.common.inject.TypeLiteral;
 import org.opensearch.common.inject.matcher.Matcher;
@@ -45,8 +46,9 @@
  * @author jessewilson@google.com (Jesse Wilson)
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public final class TypeConverterBinding implements Element {
     private final Object source;
     private final Matcher<? super TypeLiteral<?>> typeMatcher;
diff --git a/server/src/main/java/org/opensearch/common/inject/spi/TypeEncounter.java b/server/src/main/java/org/opensearch/common/inject/spi/TypeEncounter.java
index e06751668c0f1..61756a5bcad95 100644
--- a/server/src/main/java/org/opensearch/common/inject/spi/TypeEncounter.java
+++ b/server/src/main/java/org/opensearch/common/inject/spi/TypeEncounter.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject.spi;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.Key;
 import org.opensearch.common.inject.MembersInjector;
 import org.opensearch.common.inject.Provider;
@@ -43,8 +44,9 @@
  * @param <I> the injectable type encountered
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 @SuppressWarnings("overloads")
 public interface TypeEncounter<I> {
 
diff --git a/server/src/main/java/org/opensearch/common/inject/spi/TypeListener.java b/server/src/main/java/org/opensearch/common/inject/spi/TypeListener.java
index fd7004aa80df0..3157fa15f471b 100644
--- a/server/src/main/java/org/opensearch/common/inject/spi/TypeListener.java
+++ b/server/src/main/java/org/opensearch/common/inject/spi/TypeListener.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject.spi;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.TypeLiteral;
 
 /**
@@ -43,8 +44,9 @@
  *
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface TypeListener {
 
     /**
diff --git a/server/src/main/java/org/opensearch/common/inject/spi/TypeListenerBinding.java b/server/src/main/java/org/opensearch/common/inject/spi/TypeListenerBinding.java
index 505028f09232d..4ddcf3fc11bc1 100644
--- a/server/src/main/java/org/opensearch/common/inject/spi/TypeListenerBinding.java
+++ b/server/src/main/java/org/opensearch/common/inject/spi/TypeListenerBinding.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject.spi;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.Binder;
 import org.opensearch.common.inject.TypeLiteral;
 import org.opensearch.common.inject.matcher.Matcher;
@@ -42,8 +43,9 @@
  * @author jessewilson@google.com (Jesse Wilson)
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public final class TypeListenerBinding implements Element {
 
     private final Object source;
diff --git a/server/src/main/java/org/opensearch/common/inject/spi/UntargettedBinding.java b/server/src/main/java/org/opensearch/common/inject/spi/UntargettedBinding.java
index 37e40d45cb5a9..56890efdfcd8d 100644
--- a/server/src/main/java/org/opensearch/common/inject/spi/UntargettedBinding.java
+++ b/server/src/main/java/org/opensearch/common/inject/spi/UntargettedBinding.java
@@ -29,6 +29,7 @@
 
 package org.opensearch.common.inject.spi;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.inject.Binding;
 
 /**
@@ -38,6 +39,7 @@
  * @author jessewilson@google.com (Jesse Wilson)
  * @since 2.0
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface UntargettedBinding<T> extends Binding<T> {}
diff --git a/server/src/main/java/org/opensearch/common/lucene/index/OpenSearchDirectoryReader.java b/server/src/main/java/org/opensearch/common/lucene/index/OpenSearchDirectoryReader.java
index f9a87b9e74214..ec2cfde84ca5f 100644
--- a/server/src/main/java/org/opensearch/common/lucene/index/OpenSearchDirectoryReader.java
+++ b/server/src/main/java/org/opensearch/common/lucene/index/OpenSearchDirectoryReader.java
@@ -84,8 +84,10 @@ public DelegatingCacheHelper getDelegatingCacheHelper() {
 
     /**
      * Wraps existing IndexReader cache helper which internally provides a way to wrap CacheKey.
-     * @opensearch.internal
+     *
+     * @opensearch.api
      */
+    @PublicApi(since = "2.13.0")
     public class DelegatingCacheHelper implements CacheHelper {
         private final CacheHelper cacheHelper;
         private final DelegatingCacheKey serializableCacheKey;
@@ -113,7 +115,10 @@ public void addClosedListener(ClosedListener listener) {
     /**
      *  Wraps internal IndexReader.CacheKey and attaches a uniqueId to it which can be eventually be used instead of
      *  object itself for serialization purposes.
+     *
+     *  @opensearch.api
      */
+    @PublicApi(since = "2.13.0")
     public class DelegatingCacheKey {
         private final CacheKey cacheKey;
         private final String uniqueId;
diff --git a/server/src/main/java/org/opensearch/common/metrics/MeanMetric.java b/server/src/main/java/org/opensearch/common/metrics/MeanMetric.java
index 359facdce633b..94d44d5b35d74 100644
--- a/server/src/main/java/org/opensearch/common/metrics/MeanMetric.java
+++ b/server/src/main/java/org/opensearch/common/metrics/MeanMetric.java
@@ -32,13 +32,16 @@
 
 package org.opensearch.common.metrics;
 
+import org.opensearch.common.annotation.PublicApi;
+
 import java.util.concurrent.atomic.LongAdder;
 
 /**
  * An average metric for tracking.
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public class MeanMetric implements Metric {
 
     private final LongAdder counter = new LongAdder();
diff --git a/server/src/main/java/org/opensearch/extensions/rest/RestSendToExtensionAction.java b/server/src/main/java/org/opensearch/extensions/rest/RestSendToExtensionAction.java
index 41783b89ccc69..f4503ce55e6bc 100644
--- a/server/src/main/java/org/opensearch/extensions/rest/RestSendToExtensionAction.java
+++ b/server/src/main/java/org/opensearch/extensions/rest/RestSendToExtensionAction.java
@@ -12,6 +12,7 @@
 import org.apache.logging.log4j.Logger;
 import org.opensearch.action.ActionModule.DynamicActionRegistry;
 import org.opensearch.client.node.NodeClient;
+import org.opensearch.common.annotation.ExperimentalApi;
 import org.opensearch.core.common.bytes.BytesReference;
 import org.opensearch.core.common.io.stream.StreamInput;
 import org.opensearch.core.rest.RestStatus;
@@ -52,7 +53,10 @@
 
 /**
  * An action that forwards REST requests to an extension
+ *
+ * @opensearch.experimental
  */
+@ExperimentalApi
 public class RestSendToExtensionAction extends BaseRestHandler {
 
     private static final String SEND_TO_EXTENSION_ACTION = "send_to_extension_action";
diff --git a/server/src/main/java/org/opensearch/http/HttpInfo.java b/server/src/main/java/org/opensearch/http/HttpInfo.java
index 10f2d50dacb14..4a39e40c471b1 100644
--- a/server/src/main/java/org/opensearch/http/HttpInfo.java
+++ b/server/src/main/java/org/opensearch/http/HttpInfo.java
@@ -32,6 +32,7 @@
 
 package org.opensearch.http;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.logging.DeprecationLogger;
 import org.opensearch.common.network.InetAddresses;
 import org.opensearch.core.common.io.stream.StreamInput;
@@ -47,8 +48,9 @@
 /**
  * Information about an http connection
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public class HttpInfo implements ReportingService.Info {
 
     private static final DeprecationLogger deprecationLogger = DeprecationLogger.getLogger(HttpInfo.class);
diff --git a/server/src/main/java/org/opensearch/http/HttpServerTransport.java b/server/src/main/java/org/opensearch/http/HttpServerTransport.java
index 890136cb67e60..012b69c29c1d4 100644
--- a/server/src/main/java/org/opensearch/http/HttpServerTransport.java
+++ b/server/src/main/java/org/opensearch/http/HttpServerTransport.java
@@ -32,6 +32,7 @@
 
 package org.opensearch.http;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.lifecycle.LifecycleComponent;
 import org.opensearch.common.util.concurrent.ThreadContext;
 import org.opensearch.core.common.transport.BoundTransportAddress;
@@ -42,8 +43,9 @@
 /**
  * HTTP Transport server
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface HttpServerTransport extends LifecycleComponent, ReportingService<HttpInfo> {
 
     String HTTP_SERVER_WORKER_THREAD_NAME_PREFIX = "http_server_worker";
diff --git a/server/src/main/java/org/opensearch/http/HttpStats.java b/server/src/main/java/org/opensearch/http/HttpStats.java
index 078b84b7bc563..f69eff59e830d 100644
--- a/server/src/main/java/org/opensearch/http/HttpStats.java
+++ b/server/src/main/java/org/opensearch/http/HttpStats.java
@@ -32,6 +32,7 @@
 
 package org.opensearch.http;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.core.common.io.stream.StreamInput;
 import org.opensearch.core.common.io.stream.StreamOutput;
 import org.opensearch.core.common.io.stream.Writeable;
@@ -43,8 +44,9 @@
 /**
  * Stats for HTTP connections
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public class HttpStats implements Writeable, ToXContentFragment {
 
     private final long serverOpen;
diff --git a/server/src/main/java/org/opensearch/index/codec/fuzzy/LongArrayBackedBitSet.java b/server/src/main/java/org/opensearch/index/codec/fuzzy/LongArrayBackedBitSet.java
index bd4936aeec366..392a925c21143 100644
--- a/server/src/main/java/org/opensearch/index/codec/fuzzy/LongArrayBackedBitSet.java
+++ b/server/src/main/java/org/opensearch/index/codec/fuzzy/LongArrayBackedBitSet.java
@@ -39,7 +39,7 @@ class LongArrayBackedBitSet implements Accountable, Closeable {
     /**
      * Constructor which uses Lucene's IndexInput to read the bitset into a read-only buffer.
      * @param in IndexInput containing the serialized bitset.
-     * @throws IOException
+     * @throws IOException I/O exception
      */
     LongArrayBackedBitSet(IndexInput in) throws IOException {
         underlyingArrayLength = in.readLong();
diff --git a/server/src/main/java/org/opensearch/index/store/RemoteSegmentStoreDirectoryFactory.java b/server/src/main/java/org/opensearch/index/store/RemoteSegmentStoreDirectoryFactory.java
index eca8d9ec702e1..d6d3f1fca833c 100644
--- a/server/src/main/java/org/opensearch/index/store/RemoteSegmentStoreDirectoryFactory.java
+++ b/server/src/main/java/org/opensearch/index/store/RemoteSegmentStoreDirectoryFactory.java
@@ -9,6 +9,7 @@
 package org.opensearch.index.store;
 
 import org.apache.lucene.store.Directory;
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.blobstore.BlobPath;
 import org.opensearch.core.index.shard.ShardId;
 import org.opensearch.index.IndexSettings;
@@ -28,8 +29,9 @@
 /**
  * Factory for a remote store directory
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "2.3.0")
 public class RemoteSegmentStoreDirectoryFactory implements IndexStorePlugin.DirectoryFactory {
     private static final String SEGMENTS = "segments";
 
diff --git a/server/src/main/java/org/opensearch/rest/BaseRestHandler.java b/server/src/main/java/org/opensearch/rest/BaseRestHandler.java
index e18a594236fc8..3552e32022b2c 100644
--- a/server/src/main/java/org/opensearch/rest/BaseRestHandler.java
+++ b/server/src/main/java/org/opensearch/rest/BaseRestHandler.java
@@ -40,6 +40,7 @@
 import org.opensearch.action.support.clustermanager.ClusterManagerNodeRequest;
 import org.opensearch.client.node.NodeClient;
 import org.opensearch.common.CheckedConsumer;
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.collect.Tuple;
 import org.opensearch.common.logging.DeprecationLogger;
 import org.opensearch.common.settings.Setting;
@@ -73,6 +74,7 @@
  *
  * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public abstract class BaseRestHandler implements RestHandler {
 
     public static final Setting<Boolean> MULTI_ALLOW_EXPLICIT_INDEX = Setting.boolSetting(
@@ -195,8 +197,11 @@ protected final String unrecognized(
     /**
      * REST requests are handled by preparing a channel consumer that represents the execution of
      * the request against a channel.
+     *
+     * @opensearch.api
      */
     @FunctionalInterface
+    @PublicApi(since = "1.0.0")
     protected interface RestChannelConsumer extends CheckedConsumer<RestChannel, Exception> {}
 
     /**
diff --git a/server/src/main/java/org/opensearch/rest/NamedRoute.java b/server/src/main/java/org/opensearch/rest/NamedRoute.java
index 109f688a4924e..c2b3ea5fdeaaf 100644
--- a/server/src/main/java/org/opensearch/rest/NamedRoute.java
+++ b/server/src/main/java/org/opensearch/rest/NamedRoute.java
@@ -9,6 +9,7 @@
 package org.opensearch.rest;
 
 import org.opensearch.OpenSearchException;
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.transport.TransportService;
 
 import java.util.HashSet;
@@ -20,8 +21,9 @@
 /**
  * A named Route
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "2.7.0")
 public class NamedRoute extends RestHandler.Route {
 
     private static final String VALID_ACTION_NAME_PATTERN = "^[a-zA-Z0-9:/*_]*$";
diff --git a/server/src/main/java/org/opensearch/rest/RestChannel.java b/server/src/main/java/org/opensearch/rest/RestChannel.java
index b8ce3e92e0098..b3ded1389f754 100644
--- a/server/src/main/java/org/opensearch/rest/RestChannel.java
+++ b/server/src/main/java/org/opensearch/rest/RestChannel.java
@@ -33,6 +33,7 @@
 package org.opensearch.rest;
 
 import org.opensearch.common.Nullable;
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.io.stream.BytesStreamOutput;
 import org.opensearch.core.xcontent.MediaType;
 import org.opensearch.core.xcontent.XContentBuilder;
@@ -44,6 +45,7 @@
  *
  * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface RestChannel {
 
     XContentBuilder newBuilder() throws IOException;
diff --git a/server/src/main/java/org/opensearch/rest/RestHandler.java b/server/src/main/java/org/opensearch/rest/RestHandler.java
index 294dc3ffbe329..877afdd951088 100644
--- a/server/src/main/java/org/opensearch/rest/RestHandler.java
+++ b/server/src/main/java/org/opensearch/rest/RestHandler.java
@@ -33,6 +33,7 @@
 package org.opensearch.rest;
 
 import org.opensearch.client.node.NodeClient;
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.core.xcontent.XContent;
 import org.opensearch.rest.RestRequest.Method;
 
@@ -46,6 +47,7 @@
  *
  * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 @FunctionalInterface
 public interface RestHandler {
 
@@ -180,8 +182,9 @@ public boolean allowSystemIndexAccessByDefault() {
     /**
      * Route for the request.
      *
-     * @opensearch.internal
+     * @opensearch.api
      */
+    @PublicApi(since = "1.0.0")
     class Route {
 
         protected final String path;
@@ -231,7 +234,10 @@ public boolean equals(Object o) {
 
     /**
      * Represents an API that has been deprecated and is slated for removal.
+     *
+     * @opensearch.api
      */
+    @PublicApi(since = "1.0.0")
     class DeprecatedRoute extends Route {
 
         private final String deprecationMessage;
@@ -249,7 +255,10 @@ public String getDeprecationMessage() {
     /**
      * Represents an API that has had its {@code path} or {@code method} changed. Holds both the
      * new and previous {@code path} and {@code method} combination.
+     *
+     * @opensearch.api
      */
+    @PublicApi(since = "1.0.0")
     class ReplacedRoute extends Route {
 
         private final String deprecatedPath;
diff --git a/server/src/main/java/org/opensearch/rest/RestResponse.java b/server/src/main/java/org/opensearch/rest/RestResponse.java
index 2eff746e8508c..482eb6b052e9b 100644
--- a/server/src/main/java/org/opensearch/rest/RestResponse.java
+++ b/server/src/main/java/org/opensearch/rest/RestResponse.java
@@ -33,6 +33,7 @@
 package org.opensearch.rest;
 
 import org.opensearch.OpenSearchException;
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.lease.Releasable;
 import org.opensearch.core.common.bytes.BytesReference;
 import org.opensearch.core.rest.RestStatus;
@@ -49,6 +50,7 @@
  *
  * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public abstract class RestResponse {
 
     private Map<String, List<String>> customHeaders;
diff --git a/server/src/main/java/org/opensearch/tasks/TaskListener.java b/server/src/main/java/org/opensearch/tasks/TaskListener.java
index 97df8eacee584..7ec08984a7f07 100644
--- a/server/src/main/java/org/opensearch/tasks/TaskListener.java
+++ b/server/src/main/java/org/opensearch/tasks/TaskListener.java
@@ -32,11 +32,14 @@
 
 package org.opensearch.tasks;
 
+import org.opensearch.common.annotation.PublicApi;
+
 /**
  * Listener for Task success or failure.
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface TaskListener<Response> {
     /**
      * Handle task response. This response may constitute a failure or a success
diff --git a/server/src/main/java/org/opensearch/transport/ConnectionProfile.java b/server/src/main/java/org/opensearch/transport/ConnectionProfile.java
index b9764c0c53f4a..931707e4a1cdc 100644
--- a/server/src/main/java/org/opensearch/transport/ConnectionProfile.java
+++ b/server/src/main/java/org/opensearch/transport/ConnectionProfile.java
@@ -33,6 +33,7 @@
 
 import org.opensearch.cluster.node.DiscoveryNode;
 import org.opensearch.common.Nullable;
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.settings.Settings;
 import org.opensearch.common.unit.TimeValue;
 
@@ -49,8 +50,9 @@
  * A connection profile describes how many connection are established to specific node for each of the available request types.
  * ({@link org.opensearch.transport.TransportRequestOptions.Type}). This allows to tailor a connection towards a specific usage.
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public final class ConnectionProfile {
 
     /**
diff --git a/server/src/main/java/org/opensearch/transport/Header.java b/server/src/main/java/org/opensearch/transport/Header.java
index a179cfb35288e..57c1da6f46aec 100644
--- a/server/src/main/java/org/opensearch/transport/Header.java
+++ b/server/src/main/java/org/opensearch/transport/Header.java
@@ -33,6 +33,7 @@
 package org.opensearch.transport;
 
 import org.opensearch.Version;
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.collect.Tuple;
 import org.opensearch.common.util.concurrent.ThreadContext;
 import org.opensearch.core.common.io.stream.StreamInput;
@@ -47,8 +48,9 @@
 /**
  * Transport Header
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public class Header {
 
     private static final String RESPONSE_NAME = "NO_ACTION_NAME_FOR_RESPONSES";
diff --git a/server/src/main/java/org/opensearch/transport/InboundMessage.java b/server/src/main/java/org/opensearch/transport/InboundMessage.java
index a1ed682ff7d7f..71c4d6973505d 100644
--- a/server/src/main/java/org/opensearch/transport/InboundMessage.java
+++ b/server/src/main/java/org/opensearch/transport/InboundMessage.java
@@ -32,6 +32,7 @@
 
 package org.opensearch.transport;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.bytes.ReleasableBytesReference;
 import org.opensearch.common.lease.Releasable;
 import org.opensearch.common.lease.Releasables;
@@ -43,8 +44,9 @@
 /**
  * Inbound data as a message
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public class InboundMessage implements Releasable {
 
     private final Header header;
diff --git a/server/src/main/java/org/opensearch/transport/RemoteClusterService.java b/server/src/main/java/org/opensearch/transport/RemoteClusterService.java
index 87786fb22f22e..dc729053c2148 100644
--- a/server/src/main/java/org/opensearch/transport/RemoteClusterService.java
+++ b/server/src/main/java/org/opensearch/transport/RemoteClusterService.java
@@ -40,6 +40,7 @@
 import org.opensearch.client.Client;
 import org.opensearch.cluster.node.DiscoveryNode;
 import org.opensearch.cluster.node.DiscoveryNodeRole;
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.settings.ClusterSettings;
 import org.opensearch.common.settings.Setting;
 import org.opensearch.common.settings.Settings;
@@ -73,8 +74,9 @@
 /**
  * Basic service for accessing remote clusters via gateway nodes
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public final class RemoteClusterService extends RemoteClusterAware implements Closeable {
 
     private final Logger logger = LogManager.getLogger(RemoteClusterService.class);
diff --git a/server/src/main/java/org/opensearch/transport/RemoteConnectionInfo.java b/server/src/main/java/org/opensearch/transport/RemoteConnectionInfo.java
index 280dd958358fd..b5f356490d3d4 100644
--- a/server/src/main/java/org/opensearch/transport/RemoteConnectionInfo.java
+++ b/server/src/main/java/org/opensearch/transport/RemoteConnectionInfo.java
@@ -32,6 +32,7 @@
 
 package org.opensearch.transport;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.unit.TimeValue;
 import org.opensearch.core.common.io.stream.StreamInput;
 import org.opensearch.core.common.io.stream.StreamOutput;
@@ -46,8 +47,9 @@
  * This class encapsulates all remote cluster information to be rendered on
  * {@code _remote/info} requests.
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public final class RemoteConnectionInfo implements ToXContentFragment, Writeable {
 
     final ModeInfo modeInfo;
@@ -132,8 +134,9 @@ public int hashCode() {
     /**
      * Mode information
      *
-     * @opensearch.internal
+     * @opensearch.api
      */
+    @PublicApi(since = "1.0.0")
     public interface ModeInfo extends ToXContentFragment, Writeable {
 
         boolean isConnected();
diff --git a/server/src/main/java/org/opensearch/transport/RemoteConnectionStrategy.java b/server/src/main/java/org/opensearch/transport/RemoteConnectionStrategy.java
index f0b37c617725e..f2c159d1380e8 100644
--- a/server/src/main/java/org/opensearch/transport/RemoteConnectionStrategy.java
+++ b/server/src/main/java/org/opensearch/transport/RemoteConnectionStrategy.java
@@ -38,6 +38,7 @@
 import org.apache.lucene.store.AlreadyClosedException;
 import org.opensearch.action.support.ContextPreservingActionListener;
 import org.opensearch.cluster.node.DiscoveryNode;
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.settings.Setting;
 import org.opensearch.common.settings.Settings;
 import org.opensearch.common.unit.TimeValue;
@@ -75,7 +76,13 @@
  */
 public abstract class RemoteConnectionStrategy implements TransportConnectionListener, Closeable {
 
-    enum ConnectionStrategy {
+    /**
+     * Strategy to connect to remote nodes
+     *
+    * @opensearch.api
+    */
+    @PublicApi(since = "1.0.0")
+    public enum ConnectionStrategy {
         SNIFF(
             SniffConnectionStrategy.CHANNELS_PER_CONNECTION,
             SniffConnectionStrategy::enablementSettings,
diff --git a/server/src/main/java/org/opensearch/transport/RequestHandlerRegistry.java b/server/src/main/java/org/opensearch/transport/RequestHandlerRegistry.java
index 98c182c562928..4368dbdece6cf 100644
--- a/server/src/main/java/org/opensearch/transport/RequestHandlerRegistry.java
+++ b/server/src/main/java/org/opensearch/transport/RequestHandlerRegistry.java
@@ -32,6 +32,7 @@
 
 package org.opensearch.transport;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.lease.Releasable;
 import org.opensearch.common.lease.Releasables;
 import org.opensearch.common.util.concurrent.ThreadContext;
@@ -47,8 +48,9 @@
 /**
  * Registry for OpenSearch RequestHandlers
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public final class RequestHandlerRegistry<Request extends TransportRequest> {
 
     private final String action;
diff --git a/server/src/main/java/org/opensearch/transport/StatsTracker.java b/server/src/main/java/org/opensearch/transport/StatsTracker.java
index 5548d2d558ae2..02bc0a51c9330 100644
--- a/server/src/main/java/org/opensearch/transport/StatsTracker.java
+++ b/server/src/main/java/org/opensearch/transport/StatsTracker.java
@@ -32,6 +32,7 @@
 
 package org.opensearch.transport;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.metrics.MeanMetric;
 
 import java.util.concurrent.atomic.LongAdder;
@@ -39,8 +40,9 @@
 /**
  * Tracks transport statistics
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public final class StatsTracker {
 
     private final LongAdder bytesRead = new LongAdder();
diff --git a/server/src/main/java/org/opensearch/transport/TcpChannel.java b/server/src/main/java/org/opensearch/transport/TcpChannel.java
index f98b65d0a4df1..7d4515de85d80 100644
--- a/server/src/main/java/org/opensearch/transport/TcpChannel.java
+++ b/server/src/main/java/org/opensearch/transport/TcpChannel.java
@@ -32,6 +32,7 @@
 
 package org.opensearch.transport;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.network.CloseableChannel;
 import org.opensearch.common.unit.TimeValue;
 import org.opensearch.core.action.ActionListener;
@@ -45,8 +46,9 @@
  * abstraction used by the {@link TcpTransport} and {@link TransportService}. All tcp transport
  * implementations must return channels that adhere to the required method contracts.
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface TcpChannel extends CloseableChannel {
 
     /**
@@ -114,8 +116,9 @@ default <T> Optional<T> get(String name, Class<T> clazz) {
     /**
      * Channel statistics
      *
-     * @opensearch.internal
+     * @opensearch.api
      */
+    @PublicApi(since = "1.0.0")
     class ChannelStats {
 
         private volatile long lastAccessedTime;
diff --git a/server/src/main/java/org/opensearch/transport/TcpTransport.java b/server/src/main/java/org/opensearch/transport/TcpTransport.java
index d0e6516973382..7d45152089f37 100644
--- a/server/src/main/java/org/opensearch/transport/TcpTransport.java
+++ b/server/src/main/java/org/opensearch/transport/TcpTransport.java
@@ -39,6 +39,7 @@
 import org.opensearch.action.support.ThreadedActionListener;
 import org.opensearch.cluster.node.DiscoveryNode;
 import org.opensearch.common.Booleans;
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.common.lifecycle.AbstractLifecycleComponent;
 import org.opensearch.common.lifecycle.Lifecycle;
 import org.opensearch.common.metrics.MeanMetric;
@@ -111,8 +112,9 @@
 /**
  * The TCP Transport layer
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public abstract class TcpTransport extends AbstractLifecycleComponent implements Transport {
     private static final Logger logger = LogManager.getLogger(TcpTransport.class);
 
@@ -966,7 +968,10 @@ public static Set<ProfileSettings> getProfileSettings(Settings settings) {
 
     /**
      * Representation of a transport profile settings for a {@code transport.profiles.$profilename.*}
+     *
+     * @opensearch.api
      */
+    @PublicApi(since = "1.0.0")
     public static final class ProfileSettings {
         public final String profileName;
         public final boolean tcpNoDelay;
diff --git a/server/src/main/java/org/opensearch/transport/Transport.java b/server/src/main/java/org/opensearch/transport/Transport.java
index 8abedff37db14..b89393615c95f 100644
--- a/server/src/main/java/org/opensearch/transport/Transport.java
+++ b/server/src/main/java/org/opensearch/transport/Transport.java
@@ -58,8 +58,9 @@
 /**
  * OpenSearch Transport Interface
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface Transport extends LifecycleComponent {
 
     /**
@@ -166,7 +167,10 @@ default Object getCacheKey() {
     /**
      * This class represents a response context that encapsulates the actual response handler, the action and the connection it was
      * executed on.
+     *
+     * @opensearch.api
      */
+    @PublicApi(since = "1.0.0")
     final class ResponseContext<T extends TransportResponse> {
 
         private final TransportResponseHandler<T> handler;
@@ -196,7 +200,10 @@ public String action() {
 
     /**
      * This class is a registry that allows
+     *
+     * @opensearch.api
      */
+    @PublicApi(since = "1.0.0")
     final class ResponseHandlers {
         private final ConcurrentMapLong<ResponseContext<? extends TransportResponse>> handlers = ConcurrentCollections
             .newConcurrentMapLongWithAggressiveConcurrency();
@@ -276,8 +283,9 @@ public TransportResponseHandler<? extends TransportResponse> onResponseReceived(
     /**
      * Request handler implementations
      *
-     * @opensearch.internal
+     * @opensearch.api
      */
+    @PublicApi(since = "1.0.0")
     final class RequestHandlers {
 
         private volatile Map<String, RequestHandlerRegistry<? extends TransportRequest>> requestHandlers = Collections.emptyMap();
diff --git a/server/src/main/java/org/opensearch/transport/TransportChannel.java b/server/src/main/java/org/opensearch/transport/TransportChannel.java
index f84ee5dc745c3..7b6715ff2c73d 100644
--- a/server/src/main/java/org/opensearch/transport/TransportChannel.java
+++ b/server/src/main/java/org/opensearch/transport/TransportChannel.java
@@ -36,6 +36,7 @@
 import org.apache.logging.log4j.Logger;
 import org.apache.logging.log4j.message.ParameterizedMessage;
 import org.opensearch.Version;
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.core.transport.TransportResponse;
 
 import java.io.IOException;
@@ -46,6 +47,7 @@
  *
  * @opensearch.internal
  */
+@PublicApi(since = "1.0.0")
 public interface TransportChannel {
 
     Logger logger = LogManager.getLogger(TransportChannel.class);
diff --git a/server/src/main/java/org/opensearch/transport/TransportMessageListener.java b/server/src/main/java/org/opensearch/transport/TransportMessageListener.java
index dfcd7acce3706..284c4646655c5 100644
--- a/server/src/main/java/org/opensearch/transport/TransportMessageListener.java
+++ b/server/src/main/java/org/opensearch/transport/TransportMessageListener.java
@@ -32,13 +32,15 @@
 package org.opensearch.transport;
 
 import org.opensearch.cluster.node.DiscoveryNode;
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.core.transport.TransportResponse;
 
 /**
  * Listens for transport messages
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface TransportMessageListener {
 
     TransportMessageListener NOOP_LISTENER = new TransportMessageListener() {
diff --git a/server/src/main/java/org/opensearch/transport/TransportRequestHandler.java b/server/src/main/java/org/opensearch/transport/TransportRequestHandler.java
index 54ee1b68fc9aa..0419c0b82029b 100644
--- a/server/src/main/java/org/opensearch/transport/TransportRequestHandler.java
+++ b/server/src/main/java/org/opensearch/transport/TransportRequestHandler.java
@@ -32,13 +32,15 @@
 
 package org.opensearch.transport;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.tasks.Task;
 
 /**
  * Handles transport requests
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface TransportRequestHandler<T extends TransportRequest> {
 
     void messageReceived(T request, TransportChannel channel, Task task) throws Exception;
diff --git a/server/src/main/java/org/opensearch/transport/TransportResponseHandler.java b/server/src/main/java/org/opensearch/transport/TransportResponseHandler.java
index 8992af18edb48..748d2a4d867ec 100644
--- a/server/src/main/java/org/opensearch/transport/TransportResponseHandler.java
+++ b/server/src/main/java/org/opensearch/transport/TransportResponseHandler.java
@@ -32,6 +32,7 @@
 
 package org.opensearch.transport;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.core.common.io.stream.StreamInput;
 import org.opensearch.core.common.io.stream.Writeable;
 import org.opensearch.core.transport.TransportResponse;
@@ -42,8 +43,9 @@
 /**
  * Handles transport responses
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public interface TransportResponseHandler<T extends TransportResponse> extends Writeable.Reader<T> {
 
     void handleResponse(T response);
diff --git a/server/src/main/java/org/opensearch/transport/TransportStats.java b/server/src/main/java/org/opensearch/transport/TransportStats.java
index e3c4773f4a472..01980ce529caa 100644
--- a/server/src/main/java/org/opensearch/transport/TransportStats.java
+++ b/server/src/main/java/org/opensearch/transport/TransportStats.java
@@ -32,6 +32,7 @@
 
 package org.opensearch.transport;
 
+import org.opensearch.common.annotation.PublicApi;
 import org.opensearch.core.common.io.stream.StreamInput;
 import org.opensearch.core.common.io.stream.StreamOutput;
 import org.opensearch.core.common.io.stream.Writeable;
@@ -44,8 +45,9 @@
 /**
  * Stats for transport activity
  *
- * @opensearch.internal
+ * @opensearch.api
  */
+@PublicApi(since = "1.0.0")
 public class TransportStats implements Writeable, ToXContentFragment {
 
     private final long serverOpen;
diff --git a/server/src/test/java/org/opensearch/action/support/clustermanager/TransportClusterManagerTermCheckTests.java b/server/src/test/java/org/opensearch/action/support/clustermanager/TransportClusterManagerTermCheckTests.java
index 8c7b7a0940c82..6d118cbccb42d 100644
--- a/server/src/test/java/org/opensearch/action/support/clustermanager/TransportClusterManagerTermCheckTests.java
+++ b/server/src/test/java/org/opensearch/action/support/clustermanager/TransportClusterManagerTermCheckTests.java
@@ -33,10 +33,10 @@
 
 import org.opensearch.Version;
 import org.opensearch.action.ActionRequestValidationException;
-import org.opensearch.action.admin.cluster.state.term.GetTermVersionResponse;
 import org.opensearch.action.support.ActionFilters;
 import org.opensearch.action.support.PlainActionFuture;
 import org.opensearch.action.support.ThreadedActionListener;
+import org.opensearch.action.support.clustermanager.term.GetTermVersionResponse;
 import org.opensearch.action.support.replication.ClusterStateCreationUtils;
 import org.opensearch.cluster.ClusterState;
 import org.opensearch.cluster.block.ClusterBlockException;
@@ -223,7 +223,7 @@ public void testTermCheckMatchWithClusterManager() throws ExecutionException, In
         assertThat(transport.capturedRequests().length, equalTo(1));
         CapturingTransport.CapturedRequest capturedRequest = transport.capturedRequests()[0];
         assertTrue(capturedRequest.node.isClusterManagerNode());
-        assertThat(capturedRequest.action, equalTo("cluster:monitor/term"));
+        assertThat(capturedRequest.action, equalTo("internal:monitor/term"));
         GetTermVersionResponse response = new GetTermVersionResponse(
             new ClusterStateTermVersion(
                 clusterService.state().getClusterName(),
@@ -249,7 +249,7 @@ public void testTermCheckNoMatchWithClusterManager() throws ExecutionException,
         assertThat(transport.capturedRequests().length, equalTo(1));
         CapturingTransport.CapturedRequest termCheckRequest = transport.capturedRequests()[0];
         assertTrue(termCheckRequest.node.isClusterManagerNode());
-        assertThat(termCheckRequest.action, equalTo("cluster:monitor/term"));
+        assertThat(termCheckRequest.action, equalTo("internal:monitor/term"));
         GetTermVersionResponse noMatchResponse = new GetTermVersionResponse(
             new ClusterStateTermVersion(
                 clusterService.state().getClusterName(),
diff --git a/server/src/test/java/org/opensearch/action/admin/cluster/state/term/ClusterTermVersionIT.java b/server/src/test/java/org/opensearch/action/support/clustermanager/term/ClusterTermVersionIT.java
similarity index 98%
rename from server/src/test/java/org/opensearch/action/admin/cluster/state/term/ClusterTermVersionIT.java
rename to server/src/test/java/org/opensearch/action/support/clustermanager/term/ClusterTermVersionIT.java
index fa2a6121af349..7b783e025a575 100644
--- a/server/src/test/java/org/opensearch/action/admin/cluster/state/term/ClusterTermVersionIT.java
+++ b/server/src/test/java/org/opensearch/action/support/clustermanager/term/ClusterTermVersionIT.java
@@ -6,7 +6,7 @@
  * compatible open source license.
  */
 
-package org.opensearch.action.admin.cluster.state.term;
+package org.opensearch.action.support.clustermanager.term;
 
 import org.opensearch.action.admin.cluster.state.ClusterStateAction;
 import org.opensearch.action.admin.cluster.state.ClusterStateRequest;
diff --git a/server/src/test/java/org/opensearch/action/admin/cluster/state/term/ClusterTermVersionTests.java b/server/src/test/java/org/opensearch/action/support/clustermanager/term/ClusterTermVersionTests.java
similarity index 93%
rename from server/src/test/java/org/opensearch/action/admin/cluster/state/term/ClusterTermVersionTests.java
rename to server/src/test/java/org/opensearch/action/support/clustermanager/term/ClusterTermVersionTests.java
index 22d9623eebdbe..23ae8c6a58776 100644
--- a/server/src/test/java/org/opensearch/action/admin/cluster/state/term/ClusterTermVersionTests.java
+++ b/server/src/test/java/org/opensearch/action/support/clustermanager/term/ClusterTermVersionTests.java
@@ -6,7 +6,7 @@
  * compatible open source license.
  */
 
-package org.opensearch.action.admin.cluster.state.term;
+package org.opensearch.action.support.clustermanager.term;
 
 import org.opensearch.cluster.service.ClusterService;
 import org.opensearch.test.OpenSearchSingleNodeTestCase;
diff --git a/server/src/test/java/org/opensearch/snapshots/SnapshotResiliencyTests.java b/server/src/test/java/org/opensearch/snapshots/SnapshotResiliencyTests.java
index 58315ba031b84..e9bbf3d861408 100644
--- a/server/src/test/java/org/opensearch/snapshots/SnapshotResiliencyTests.java
+++ b/server/src/test/java/org/opensearch/snapshots/SnapshotResiliencyTests.java
@@ -66,8 +66,6 @@
 import org.opensearch.action.admin.cluster.state.ClusterStateRequest;
 import org.opensearch.action.admin.cluster.state.ClusterStateResponse;
 import org.opensearch.action.admin.cluster.state.TransportClusterStateAction;
-import org.opensearch.action.admin.cluster.state.term.GetTermVersionAction;
-import org.opensearch.action.admin.cluster.state.term.TransportGetTermVersionAction;
 import org.opensearch.action.admin.indices.create.CreateIndexAction;
 import org.opensearch.action.admin.indices.create.CreateIndexRequest;
 import org.opensearch.action.admin.indices.create.CreateIndexResponse;
@@ -105,6 +103,8 @@
 import org.opensearch.action.support.PlainActionFuture;
 import org.opensearch.action.support.TransportAction;
 import org.opensearch.action.support.WriteRequest;
+import org.opensearch.action.support.clustermanager.term.GetTermVersionAction;
+import org.opensearch.action.support.clustermanager.term.TransportGetTermVersionAction;
 import org.opensearch.action.support.master.AcknowledgedResponse;
 import org.opensearch.action.update.UpdateHelper;
 import org.opensearch.client.AdminClient;