chore: release main (#987)

Co-authored-by: stainless-app[bot] <142633134+stainless-app[bot]@users.noreply.github.com>
Co-authored-by: Mike Cluck <mike@stainless.com>

Author: stainless-app[bot]

.release-please-manifest.json

@@ -1,6 +1,6 @@
 {
-  ".": "0.87.0",
-  "packages/vertex-sdk": "0.15.0",
+  ".": "0.88.0",
+  "packages/vertex-sdk": "0.16.0",
   "packages/bedrock-sdk": "0.28.1",
   "packages/foundry-sdk": "0.2.3",
   "packages/aws-sdk": "0.2.5"

.stats.yml

@@ -1,4 +1,4 @@
 configured_endpoints: 72
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/anthropic%2Fanthropic-d87d3ef6f636c667a0256be82cebef0699d17403d409c26ec15813683cfc3263.yml
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/anthropic%2Fanthropic-dfe504526eed07979685a729ac9afd45e59cc2879291714b9f4674f2ef1247c7.yml
 openapi_spec_hash: d849fdf2c4dd6631a60c4340e9bc1322
-config_hash: 062be10c6bf39b6719b3a5ea2bf758b3
+config_hash: 831f90480c5b2b863b726e89eabaa90c

CHANGELOG.md

@@ -1,5 +1,19 @@
 # Changelog
 
+## 0.88.0 (2026-04-10)
+
+Full Changelog: [sdk-v0.87.0...sdk-v0.88.0](https://github.com/anthropics/anthropic-sdk-typescript/compare/sdk-v0.87.0...sdk-v0.88.0)
+
+### Features
+
+* vertex eu region ([#882](https://github.com/anthropics/anthropic-sdk-typescript/issues/882)) ([1933857](https://github.com/anthropics/anthropic-sdk-typescript/commit/193385760676b1c941a1f500aa91d0f7a3204b40))
+
+
+### Documentation
+
+* improve examples ([de4f483](https://github.com/anthropics/anthropic-sdk-typescript/commit/de4f483c1eb4f758116887da5d19305eccb6f8f4))
+* update examples ([454e1c5](https://github.com/anthropics/anthropic-sdk-typescript/commit/454e1c594cfd420eb11e891baefbf6a6530d7131))
+
 ## 0.87.0 (2026-04-09)
 
 Full Changelog: [sdk-v0.86.1...sdk-v0.87.0](https://github.com/anthropics/anthropic-sdk-typescript/compare/sdk-v0.86.1...sdk-v0.87.0)

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@anthropic-ai/sdk",
-  "version": "0.87.0",
+  "version": "0.88.0",
   "description": "The official TypeScript library for the Anthropic API",
   "author": "Anthropic <support@anthropic.com>",
   "types": "dist/index.d.ts",

packages/vertex-sdk/CHANGELOG.md

@@ -1,5 +1,13 @@
 # Changelog
 
+## 0.16.0 (2026-04-10)
+
+Full Changelog: [vertex-sdk-v0.15.0...vertex-sdk-v0.16.0](https://github.com/anthropics/anthropic-sdk-typescript/compare/vertex-sdk-v0.15.0...vertex-sdk-v0.16.0)
+
+### Features
+
+* vertex eu region ([#882](https://github.com/anthropics/anthropic-sdk-typescript/issues/882)) ([1933857](https://github.com/anthropics/anthropic-sdk-typescript/commit/193385760676b1c941a1f500aa91d0f7a3204b40))
+
 ## 0.15.0 (2026-04-03)
 
 Full Changelog: [vertex-sdk-v0.14.4...vertex-sdk-v0.15.0](https://github.com/anthropics/anthropic-sdk-typescript/compare/vertex-sdk-v0.14.4...vertex-sdk-v0.15.0)

packages/vertex-sdk/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@anthropic-ai/vertex-sdk",
-  "version": "0.15.0",
+  "version": "0.16.0",
   "description": "The official TypeScript library for the Anthropic Vertex API",
   "author": "Anthropic <support@anthropic.com>",
   "types": "dist/index.d.ts",

packages/vertex-sdk/src/client.ts

@@ -94,6 +94,9 @@ export class AnthropicVertex extends BaseAnthropic {
         case 'us':
           baseURL = 'https://aiplatform.us.rep.googleapis.com/v1';
           break;
+        case 'eu':
+          baseURL = 'https://aiplatform.eu.rep.googleapis.com/v1';
+          break;
         default:
           baseURL = `https://${region}-aiplatform.googleapis.com/v1`;
       }

packages/vertex-sdk/tests/client.test.ts

@@ -34,6 +34,15 @@ describe('AnthropicVertex', () => {
       expect(client.baseURL).toBe('https://aiplatform.us.rep.googleapis.com/v1');
     });
 
+    test('eu region eues correct base URL', () => {
+      const client = new AnthropicVertex({
+        region: 'eu',
+        projectId: 'test-project',
+        accessToken: 'fake-token',
+      });
+      expect(client.baseURL).toBe('https://aiplatform.eu.rep.googleapis.com/v1');
+    });
+
     test.each(['us-central1', 'europe-west1', 'asia-southeast1'])(
       'regional endpoint %s uses correct base URL format',
       (region) => {

packages/vertex-sdk/yarn.lock

@@ -17,7 +17,7 @@
 
 "@anthropic-ai/sdk@file:../../dist":
   # x-release-please-start-version
-  version "0.87.0"
+  version "0.88.0"
   # x-release-please-end-version
   dependencies:
     json-schema-to-ts "^3.1.1"

src/resources/beta/messages/messages.ts

@@ -200,8 +200,8 @@ export class Messages extends APIResource {
    * ```ts
    * const betaMessageTokensCount =
    *   await client.beta.messages.countTokens({
-   *     messages: [{ content: 'string', role: 'user' }],
-   *     model: 'claude-mythos-preview',
+   *     messages: [{ content: 'Hello, world', role: 'user' }],
+   *     model: 'claude-opus-4-6',
    *   });
    * ```
    */