diff --git a/crates/sui-indexer/src/apis/indexer_api.rs b/crates/sui-indexer/src/apis/indexer_api.rs
index e01f13decb4c3..f0acc957c144e 100644
--- a/crates/sui-indexer/src/apis/indexer_api.rs
+++ b/crates/sui-indexer/src/apis/indexer_api.rs
@@ -449,7 +449,7 @@ where
         Ok(())
     }
 
-    async fn resolve_name_service_address(&self, _name: String) -> RpcResult<SuiAddress> {
+    async fn resolve_name_service_address(&self, _name: String) -> RpcResult<Option<SuiAddress>> {
         // TODO(gegaowp): implement name service resolver in indexer
         todo!()
     }
diff --git a/crates/sui-json-rpc/src/api/indexer.rs b/crates/sui-json-rpc/src/api/indexer.rs
index 62ad39e5a8619..ba218173183db 100644
--- a/crates/sui-json-rpc/src/api/indexer.rs
+++ b/crates/sui-json-rpc/src/api/indexer.rs
@@ -99,7 +99,7 @@ pub trait IndexerApi {
         &self,
         /// The name to resolve
         name: String,
-    ) -> RpcResult<SuiAddress>;
+    ) -> RpcResult<Option<SuiAddress>>;
 
     /// Return the resolved names given address,
     /// if multiple names are resolved, the first one is the primary name.
diff --git a/crates/sui-json-rpc/src/indexer_api.rs b/crates/sui-json-rpc/src/indexer_api.rs
index 8cf768d547dfc..4a02691d3986c 100644
--- a/crates/sui-json-rpc/src/indexer_api.rs
+++ b/crates/sui-json-rpc/src/indexer_api.rs
@@ -275,7 +275,7 @@ impl<R: ReadApiServer> IndexerApiServer for IndexerApi<R> {
             .get_object(id, Some(SuiObjectDataOptions::full_content()))
     }
 
-    async fn resolve_name_service_address(&self, name: String) -> RpcResult<SuiAddress> {
+    async fn resolve_name_service_address(&self, name: String) -> RpcResult<Option<SuiAddress>> {
         let dynmaic_field_table_object_id =
             self.get_name_service_dynamic_field_table_object_id(/* reverse_lookup */ false)?;
         // NOTE: 0x1::string::String is the type tag of fields in dynamic_field_table
@@ -287,7 +287,7 @@ impl<R: ReadApiServer> IndexerApiServer for IndexerApi<R> {
         }));
         let name_bcs_value = bcs::to_bytes(&name).context("Unable to serialize name")?;
         // record of the input `name`
-        let record_object_id = self
+        let record_object_id_option = self
             .state
             .get_dynamic_field_object_id(
                 dynmaic_field_table_object_id,
@@ -299,42 +299,46 @@ impl<R: ReadApiServer> IndexerApiServer for IndexerApi<R> {
                     "Read name service dynamic field table failed with error: {:?}",
                     e
                 )
-            })?
-            .ok_or_else(|| anyhow!("Record not found for name: {:?}", name,))?;
-        let record_object_read = self.state.get_object_read(&record_object_id).map_err(|e| {
-            warn!(
-                "Failed to get object read of name: {:?} with error: {:?}",
-                record_object_id, e
-            );
-            anyhow!("{e}")
-        })?;
-        let record_parsed_move_object =
-            SuiParsedMoveObject::try_from_object_read(record_object_read)?;
-        // NOTE: "value" is the field name to get the address info
-        let address_info_move_value = record_parsed_move_object
-            .read_dynamic_field_value(NAME_SERVICE_VALUE)
-            .ok_or_else(|| anyhow!("Cannot find value field in record Move struct"))?;
-        let address_info_move_struct = match address_info_move_value {
-            SuiMoveValue::Struct(a) => Ok(a),
-            _ => Err(anyhow!("value field is not found.")),
-        }?;
-        // NOTE: "marker" is the field name to get the address
-        let address_str_move_value = address_info_move_struct
-            .read_dynamic_field_value(NAME_SERVICE_MARKER)
-            .ok_or_else(|| {
-                anyhow!(
-                    "Cannot find marker field in address info Move struct: {:?}",
-                    address_info_move_struct
-                )
             })?;
-        let addr = match address_str_move_value {
-            SuiMoveValue::Address(addr) => Ok(addr),
-            _ => Err(anyhow!(
-                "No SuiAddress found in: {:?}",
-                address_str_move_value
-            )),
-        }?;
-        Ok(addr)
+        if let Some(record_object_id) = record_object_id_option {
+            let record_object_read =
+                self.state.get_object_read(&record_object_id).map_err(|e| {
+                    warn!(
+                        "Failed to get object read of name: {:?} with error: {:?}",
+                        record_object_id, e
+                    );
+                    anyhow!("{e}")
+                })?;
+            let record_parsed_move_object =
+                SuiParsedMoveObject::try_from_object_read(record_object_read)?;
+            // NOTE: "value" is the field name to get the address info
+            let address_info_move_value = record_parsed_move_object
+                .read_dynamic_field_value(NAME_SERVICE_VALUE)
+                .ok_or_else(|| anyhow!("Cannot find value field in record Move struct"))?;
+            let address_info_move_struct = match address_info_move_value {
+                SuiMoveValue::Struct(a) => Ok(a),
+                _ => Err(anyhow!("value field is not found.")),
+            }?;
+            // NOTE: "marker" is the field name to get the address
+            let address_str_move_value = address_info_move_struct
+                .read_dynamic_field_value(NAME_SERVICE_MARKER)
+                .ok_or_else(|| {
+                    anyhow!(
+                        "Cannot find marker field in address info Move struct: {:?}",
+                        address_info_move_struct
+                    )
+                })?;
+            let addr = match address_str_move_value {
+                SuiMoveValue::Address(addr) => Ok(addr),
+                _ => Err(anyhow!(
+                    "No SuiAddress found in: {:?}",
+                    address_str_move_value
+                )),
+            }?;
+            return Ok(Some(addr));
+        } else {
+            return Ok(None);
+        }
     }
 
     async fn resolve_name_service_names(
diff --git a/crates/sui-open-rpc/spec/openrpc.json b/crates/sui-open-rpc/spec/openrpc.json
index 5f9e22ff321a2..d9e8cda85b671 100644
--- a/crates/sui-open-rpc/spec/openrpc.json
+++ b/crates/sui-open-rpc/spec/openrpc.json
@@ -1789,7 +1789,6 @@
       ],
       "result": {
         "name": "SuiAddress",
-        "required": true,
         "schema": {
           "$ref": "#/components/schemas/SuiAddress"
         }