feat(cloudflare,vercel-edge): Add support for Anthropic AI instrumentation

dev-packages/cloudflare-integration-tests/suites/tracing/anthropic-ai/index.ts

@@ -0,0 +1,32 @@
+import * as Sentry from '@sentry/cloudflare';
+import type { AnthropicAiClient } from '@sentry/core';
+import { MockAnthropic } from './mocks';
+
+interface Env {
+  SENTRY_DSN: string;
+}
+
+const mockClient = new MockAnthropic({
+  apiKey: 'mock-api-key',
+});
+
+const client: AnthropicAiClient = Sentry.instrumentAnthropicAiClient(mockClient);
+
+export default Sentry.withSentry(
+  (env: Env) => ({
+    dsn: env.SENTRY_DSN,
+    tracesSampleRate: 1.0,
+  }),
+  {
+    async fetch(_request, _env, _ctx) {
+      const response = await client.messages?.create({
+        model: 'claude-3-haiku-20240307',
+        messages: [{ role: 'user', content: 'What is the capital of France?' }],
+        temperature: 0.7,
+        max_tokens: 100,
+      });
+
+      return new Response(JSON.stringify(response));
+    },
+  },
+);

dev-packages/cloudflare-integration-tests/suites/tracing/anthropic-ai/mocks.ts

@@ -0,0 +1,68 @@
+import type { AnthropicAiClient, AnthropicAiResponse } from '@sentry/core';
+
+export class MockAnthropic implements AnthropicAiClient {
+  public messages: {
+    create: (...args: unknown[]) => Promise<AnthropicAiResponse>;
+    countTokens: (...args: unknown[]) => Promise<AnthropicAiResponse>;
+  };
+  public models: {
+    list: (...args: unknown[]) => Promise<AnthropicAiResponse>;
+    get: (...args: unknown[]) => Promise<AnthropicAiResponse>;
+  };
+  public completions: {
+    create: (...args: unknown[]) => Promise<AnthropicAiResponse>;
+  };
+  public apiKey: string;
+
+  public constructor(config: { apiKey: string }) {
+    this.apiKey = config.apiKey;
+
+    // Main focus: messages.create functionality
+    this.messages = {
+      create: async (...args: unknown[]) => {
+        const params = args[0] as { model: string; stream?: boolean };
+        // Simulate processing time
+        await new Promise(resolve => setTimeout(resolve, 10));
+
+        if (params.model === 'error-model') {
+          const error = new Error('Model not found');
+          (error as unknown as { status: number }).status = 404;
+          (error as unknown as { headers: Record<string, string> }).headers = { 'x-request-id': 'mock-request-123' };
+          throw error;
+        }
+
+        return {
+          id: 'msg_mock123',
+          type: 'message',
+          role: 'assistant',
+          model: params.model,
+          content: [
+            {
+              type: 'text',
+              text: 'Hello from Anthropic mock!',
+            },
+          ],
+          stop_reason: 'end_turn',
+          stop_sequence: null,
+          usage: {
+            input_tokens: 10,
+            output_tokens: 15,
+            cache_creation_input_tokens: 0,
+            cache_read_input_tokens: 0,
+          },
+        };
+      },
+      countTokens: async (..._args: unknown[]) => ({ id: 'mock', type: 'model', model: 'mock', input_tokens: 0 }),
+    };
+
+    // Minimal implementations for required interface compliance
+    this.models = {
+      list: async (..._args: unknown[]) => ({ id: 'mock', type: 'model', model: 'mock' }),
+      get: async (..._args: unknown[]) => ({ id: 'mock', type: 'model', model: 'mock' }),
+    };
+
+    this.completions = {
+      create: async (..._args: unknown[]) => ({ id: 'mock', type: 'completion', model: 'mock' }),
+    };
+  }
+}

dev-packages/cloudflare-integration-tests/suites/tracing/anthropic-ai/test.ts

@@ -0,0 +1,41 @@
+import { expect, it } from 'vitest';
+import { createRunner } from '../../../runner';
+
+// These tests are not exhaustive because the instrumentation is
+// already tested in the node integration tests and we merely
+// want to test that the instrumentation does not break in our
+// cloudflare SDK.
+
+it('traces a basic message creation request', async () => {
+  const runner = createRunner(__dirname)
+    .ignore('event')
+    .expect(envelope => {
+      const transactionEvent = envelope[1]?.[0]?.[1] as any;
+
+      expect(transactionEvent.transaction).toBe('GET /');
+      expect(transactionEvent.spans).toEqual(
+        expect.arrayContaining([
+          expect.objectContaining({
+            data: expect.objectContaining({
+              'gen_ai.operation.name': 'messages',
+              'sentry.op': 'gen_ai.messages',
+              'sentry.origin': 'auto.ai.anthropic',
+              'gen_ai.system': 'anthropic',
+              'gen_ai.request.model': 'claude-3-haiku-20240307',
+              'gen_ai.request.temperature': 0.7,
+              'gen_ai.response.model': 'claude-3-haiku-20240307',
+              'gen_ai.response.id': 'msg_mock123',
+              'gen_ai.usage.input_tokens': 10,
+              'gen_ai.usage.output_tokens': 15,
+            }),
+            description: 'messages claude-3-haiku-20240307',
+            op: 'gen_ai.messages',
+            origin: 'auto.ai.anthropic',
+          }),
+        ]),
+      );
+    })
+    .start();
+  await runner.makeRequest('get', '/');
+  await runner.completed();
+});

dev-packages/cloudflare-integration-tests/suites/tracing/anthropic-ai/wrangler.jsonc

@@ -0,0 +1,6 @@
+{
+  "name": "worker-name",
+  "compatibility_date": "2025-06-17",
+  "main": "index.ts",
+  "compatibility_flags": ["nodejs_compat"],
+}

packages/cloudflare/src/index.ts

@@ -70,6 +70,7 @@ export {
   // eslint-disable-next-line deprecation/deprecation
   inboundFiltersIntegration,
   instrumentOpenAiClient,
+  instrumentAnthropicAiClient,
   eventFiltersIntegration,
   linkedErrorsIntegration,
   requestDataIntegration,

packages/core/src/index.ts

@@ -131,7 +131,12 @@ export { OPENAI_INTEGRATION_NAME } from './utils/openai/constants';
 export { instrumentAnthropicAiClient } from './utils/anthropic-ai';
 export { ANTHROPIC_AI_INTEGRATION_NAME } from './utils/anthropic-ai/constants';
 export type { OpenAiClient, OpenAiOptions, InstrumentedMethod } from './utils/openai/types';
-export type { AnthropicAiClient, AnthropicAiOptions, AnthropicAiInstrumentedMethod } from './utils/anthropic-ai/types';
+export type {
+  AnthropicAiClient,
+  AnthropicAiOptions,
+  AnthropicAiInstrumentedMethod,
+  AnthropicAiResponse,
+} from './utils/anthropic-ai/types';
 export type { FeatureFlag } from './utils/featureFlags';
 
 export {

packages/core/src/utils/anthropic-ai/index.ts

@@ -27,7 +27,6 @@ import { buildMethodPath, getFinalOperationName, getSpanOperation, setTokenUsage
 import { ANTHROPIC_AI_INTEGRATION_NAME } from './constants';
 import { instrumentStream } from './streaming';
 import type {
-  AnthropicAiClient,
   AnthropicAiInstrumentedMethod,
   AnthropicAiIntegration,
   AnthropicAiOptions,
@@ -304,7 +303,7 @@ function instrumentMethod<T extends unknown[], R>(
 /**
  * Create a deep proxy for Anthropic AI client instrumentation
  */
-function createDeepProxy<T extends AnthropicAiClient>(target: T, currentPath = '', options?: AnthropicAiOptions): T {
+function createDeepProxy<T extends object>(target: T, currentPath = '', options?: AnthropicAiOptions): T {
   return new Proxy(target, {
     get(obj: object, prop: string): unknown {
       const value = (obj as Record<string, unknown>)[prop];
@@ -332,11 +331,11 @@ function createDeepProxy<T extends AnthropicAiClient>(target: T, currentPath = '
  * Instrument an Anthropic AI client with Sentry tracing
  * Can be used across Node.js, Cloudflare Workers, and Vercel Edge
  *
- * @template T - The type of the client that extends AnthropicAiClient
+ * @template T - The type of the client that extends object
  * @param client - The Anthropic AI client to instrument
  * @param options - Optional configuration for recording inputs and outputs
  * @returns The instrumented client with the same type as the input
  */
-export function instrumentAnthropicAiClient<T extends AnthropicAiClient>(client: T, options?: AnthropicAiOptions): T {
+export function instrumentAnthropicAiClient<T extends object>(client: T, options?: AnthropicAiOptions): T {
   return createDeepProxy(client, '', options);
 }

packages/vercel-edge/src/index.ts

@@ -70,6 +70,7 @@ export {
   // eslint-disable-next-line deprecation/deprecation
   inboundFiltersIntegration,
   instrumentOpenAiClient,
+  instrumentAnthropicAiClient,
   eventFiltersIntegration,
   linkedErrorsIntegration,
   requestDataIntegration,