feat (provider/anthropic-aws): new @ai-sdk/anthropic-aws provider (v1.0.0)#15533
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New @ai-sdk/anthropic-aws package exposing createAnthropicAws for Claude
Platform on AWS — Anthropic's Messages API hosted in AWS at
aws-external-anthropic.{region}.api.aws.
Same wire format and feature set as @ai-sdk/anthropic (model IDs,
streaming, prompt caching, tool use, computer use, anthropic-beta
headers) with AWS SigV4 or AWS-provisioned API key authentication.
Reads AWS_REGION, ANTHROPIC_AWS_WORKSPACE_ID, and ANTHROPIC_AWS_API_KEY
from the environment by default.
Tests: 48 passing (25 fetch + 23 provider).
Build: clean cjs + esm + dts.
Backport of #15230. Files API and Skills API are intentionally
omitted from this v6 release — those AnthropicFiles / AnthropicSkills
classes do not exist on this branch. The v7 (main) variant of this
package exposes them.
R-Taneja
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May 21, 2026
…r v2.0.0 Sets up the v7/main canary publish for @ai-sdk/anthropic-aws@2.0.0, following the pattern from #15461 (quiverai): - .changeset/pre.json: register @ai-sdk/anthropic-aws@1.0.0 as the initial version (matches what the sibling v6 PR publishes once it merges; see #15533). - .changeset/anthropic-aws-platform.md: changeset bump set to major, which combined with the 1.0.0 initial version will publish 2.0.0 on the canary tag. Sequence (per team direction): 1. v6 backport (#15533) merges → @ai-sdk/anthropic-aws@1.0.0 ships stable 2. This PR merges → @ai-sdk/anthropic-aws@2.0.0-canary.X ships
Bring v6 in line with two tweaks made on the main PR (#15230): - 07-anthropic-aws.mdx: add 'Agent Skills' to the two feature lists (intro and Models section). Agent Skills usage works on v6 too via beta headers + container.skills request param, even though the provider.skills() helper is v7-only. - anthropic-aws-fetch.ts: drop three inline comments (the two 'avoid caching globalThis.fetch' notes and the 'Use the combined headers directly as HeadersInit' note). Code behavior unchanged. 48/48 tests still pass.
v6's TypeScript lib config doesn't expose Symbol.asyncIterator on ReadableStream, so the for-await loop didn't typecheck. Switch to the explicit reader.read() loop — same semantics, no asyncIterator requirement. 48/48 tests still pass.
gr2m
approved these changes
May 21, 2026
Mirrors the same example from the main PR (#15230). Demonstrates Anthropic's hosted web search tool routed through Claude Platform on AWS — anthropicAws.tools.webSearch_20250305() — to validate that the 'all tool use capabilities are available' claim from the Anthropic doc holds for server-executed tools, not just user-defined ones. Note: web search may need to be enabled on your workspace; if so, ask your Anthropic rep.
…ersion Matches the smoke-tested version on main. Both webSearch_20250305 and webSearch_20260209 are exported from v6's anthropic-tools, so this is a drop-in.
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Summary
New
@ai-sdk/anthropic-awspackage for Claude Platform on AWS — Anthropic's Messages API hosted inside AWS ataws-external-anthropic.{region}.api.aws. Same wire format and feature set as@ai-sdk/anthropicwith AWS-native auth (SigV4 or AWS-provisioned API key) and AWS Marketplace billing.This is the v6 (LanguageModelV3) backport of the corresponding main-branch PR (#15230), to be released as v1.0.0 stable. Per the team's release plan in #15459's pattern (which mirrors what
@ai-sdk/quiveraidid via PRs #15463 / #15461):@ai-sdk/anthropic-aws@1.0.0pre.jsonupdated to register@ai-sdk/anthropic-aws@1.0.0and its changeset bumped tomajor, which will publish v2.0.0 on the canary tagWhat's in the package
createAnthropicAws()factory + defaultanthropicAwsinstanceregion,workspaceId,apiKey,accessKeyId,secretAccessKey,sessionToken,baseURL,headers,fetch,credentialProvider,generateIdlanguageModel,chat,messages,textEmbeddingModel(deprecated throw),toolshttps://aws-external-anthropic.{region}.api.aws/v1anthropic-version: 2023-06-01+anthropic-workspace-idaws-external-anthropicDifferences from the main (v7) variant
The v7 anthropic package exposes
AnthropicFilesandAnthropicSkillsfrom its/internalentrypoint. v6 does not have those classes. The Files API and Skills API methods (provider.files(),provider.skills()) are intentionally omitted from this v6 release for that reason — users who need them should adopt v7. Everything else is at parity: same auth, same wire format, same surface.Spec version:
LanguageModelV3/ProviderV3(vsV4on main). Otherwise the implementation is identical to main.Test plan
pnpm --filter @ai-sdk/anthropic-aws build— clean cjs + esm + dtspnpm --filter @ai-sdk/anthropic-aws test— 48 / 48 passing (25 fetch helper + 23 provider — main has 50 because of the 2 files/skills tests that don't apply here)anthropic-versionheader bug)Files changed