diff --git a/go/genkit/metrics.go b/go/genkit/metrics.go
index adfcaa09b..ef7920536 100644
--- a/go/genkit/metrics.go
+++ b/go/genkit/metrics.go
@@ -67,7 +67,9 @@ func initInstruments() (*metricInstruments, error) {
 }
 
 func writeActionSuccess(ctx context.Context, actionName string, latency time.Duration) {
-	recordAction(ctx, latency, attribute.String("name", actionName))
+	recordAction(ctx, latency,
+		attribute.String("name", actionName),
+		attribute.String("source", "go"))
 }
 
 func writeActionFailure(ctx context.Context, actionName string, latency time.Duration, err error) {
@@ -76,7 +78,8 @@ func writeActionFailure(ctx context.Context, actionName string, latency time.Dur
 		// TODO(jba): Mitigate against high-cardinality dimensions that arise from
 		// many different error messages, perhaps by taking a prefix of the error
 		// message.
-		attribute.String("errorMessage", err.Error()))
+		attribute.String("errorMessage", err.Error()),
+		attribute.String("source", "go"))
 }
 
 func errorCode(err error) int {
@@ -94,7 +97,9 @@ func recordAction(ctx context.Context, latency time.Duration, attrs ...attribute
 }
 
 func writeFlowSuccess(ctx context.Context, flowName string, latency time.Duration) {
-	recordFlow(ctx, latency, attribute.String("name", flowName))
+	recordFlow(ctx, latency,
+		attribute.String("name", flowName),
+		attribute.String("source", "go"))
 }
 
 func writeFlowFailure(ctx context.Context, flowName string, latency time.Duration, err error) {
@@ -103,7 +108,8 @@ func writeFlowFailure(ctx context.Context, flowName string, latency time.Duratio
 		// TODO(jba): Mitigate against high-cardinality dimensions that arise from
 		// many different error messages, perhaps by taking a prefix of the error
 		// message.
-		attribute.String("errorMessage", err.Error()))
+		attribute.String("errorMessage", err.Error()),
+		attribute.String("source", "go"))
 }
 
 func recordFlow(ctx context.Context, latency time.Duration, attrs ...attribute.KeyValue) {
diff --git a/js/ai/src/telemetry.ts b/js/ai/src/telemetry.ts
index 8c2168f5c..039f7986b 100644
--- a/js/ai/src/telemetry.ts
+++ b/js/ai/src/telemetry.ts
@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+import { GENKIT_VERSION } from '@genkit-ai/core';
 import { logger } from '@genkit-ai/core/logging';
 import {
   internalMetricNamespaceWrap,
@@ -106,6 +107,8 @@ type SharedDimensions = {
   temperature?: number;
   topK?: number;
   topP?: number;
+  source?: string;
+  sourceVersion?: string;
 };
 
 export function recordGenerateActionMetrics(
@@ -131,6 +134,8 @@ export function recordGenerateActionMetrics(
     outputImages: opts.response?.usage?.outputImages,
     latencyMs: opts.response?.latencyMs,
     err: opts.err,
+    source: 'ts',
+    sourceVersion: GENKIT_VERSION,
   });
 }
 
@@ -148,6 +153,8 @@ export function recordGenerateActionInputLogs(
     topP: options.config?.topP,
     maxOutputTokens: options.config?.maxOutputTokens,
     stopSequences: options.config?.stopSequences,
+    source: 'ts',
+    sourceVersion: GENKIT_VERSION,
   });
 
   const messages = input.messages.length;
@@ -299,6 +306,8 @@ function doRecordGenerateActionMetrics(
     outputImages?: number;
     latencyMs?: number;
     err?: any;
+    source?: string;
+    sourceVersion: string;
   }
 ) {
   const shared: SharedDimensions = {
@@ -307,6 +316,8 @@ function doRecordGenerateActionMetrics(
     temperature: dimensions.temperature,
     topK: dimensions.topK,
     topP: dimensions.topP,
+    source: dimensions.source,
+    sourceVersion: dimensions.sourceVersion,
   };
 
   generateActionCounter.add(1, {
diff --git a/js/core/src/telemetry.ts b/js/core/src/telemetry.ts
index b7bc7bed3..46cafacf5 100644
--- a/js/core/src/telemetry.ts
+++ b/js/core/src/telemetry.ts
@@ -15,6 +15,7 @@
  */
 
 import { ValueType } from '@opentelemetry/api';
+import { GENKIT_VERSION } from './index.js';
 import {
   internalMetricNamespaceWrap,
   MetricCounter,
@@ -40,6 +41,8 @@ const actionLatencies = new MetricHistogram(_N('latency'), {
 export function writeActionSuccess(actionName: string, latencyMs: number) {
   const dimensions = {
     name: actionName,
+    source: 'ts',
+    sourceVersion: GENKIT_VERSION,
   };
   actionCounter.add(1, dimensions);
   actionLatencies.record(latencyMs, dimensions);
@@ -54,6 +57,8 @@ export function writeActionFailure(
     name: actionName,
     errorCode: err?.code,
     errorMessage: err?.message,
+    source: 'ts',
+    sourceVersion: GENKIT_VERSION,
   };
   actionCounter.add(1, dimensions);
   actionLatencies.record(latencyMs, dimensions);
diff --git a/js/flow/src/telemetry.ts b/js/flow/src/telemetry.ts
index e62234613..6562e5e05 100644
--- a/js/flow/src/telemetry.ts
+++ b/js/flow/src/telemetry.ts
@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+import { GENKIT_VERSION } from '@genkit-ai/core';
 import { logger } from '@genkit-ai/core/logging';
 import {
   internalMetricNamespaceWrap,
@@ -47,12 +48,16 @@ export function recordError(err: any) {
     name: err.name,
     message: err.message,
     stack: err.stack,
+    source: 'ts',
+    sourceVersion: GENKIT_VERSION,
   });
 }
 
 export function writeFlowSuccess(flowName: string, latencyMs: number) {
   const dimensions = {
     name: flowName,
+    source: 'ts',
+    sourceVersion: GENKIT_VERSION,
   };
   flowCounter.add(1, dimensions);
   flowLatencies.record(latencyMs, dimensions);
@@ -67,6 +72,8 @@ export function writeFlowFailure(
     name: flowName,
     errorCode: err?.code,
     errorMessage: err?.message,
+    source: 'ts',
+    sourceVersion: GENKIT_VERSION,
   };
   flowCounter.add(1, dimensions);
   flowLatencies.record(latencyMs, dimensions);
@@ -84,6 +91,8 @@ export function logRequest(flowName: string, req: express.Request) {
     query: req.query,
     originalUrl: req.originalUrl,
     path: `/${flowName}`,
+    source: 'ts',
+    sourceVersion: GENKIT_VERSION,
   });
 }
 
@@ -93,5 +102,7 @@ export function logResponse(flowName: string, respCode: number, respBody: any) {
     path: `/${flowName}`,
     code: respCode,
     body: respBody,
+    source: 'ts',
+    sourceVersion: GENKIT_VERSION,
   });
 }