Follow Discord
Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Developer Platform 21 Oct 2026
One change · api

claude-on-amazon-bedrock-legacy changedbuild-with-claude/claude-on-amazon-bedrock-legacy

Nearest release: v2.1.307, published 2 hours after this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Recorded here
Lines+4added
Lines−0removed
From line 8 where the diff opens
First seen 14 Aug 2026 this site's first read of the page
Recorded edits33to this page, all time

The whole hunk

from line 8, old and new numbered
/
lines
from line 8
88 This page covers the legacy Amazon Bedrock integration: the `InvokeModel` and `Converse` APIs with ARN-versioned model identifiers and AWS event-stream encoding. For models available on the Messages-API Bedrock endpoint, see [Claude in Amazon Bedrock](https://platform.claude.com/docs/en/build-with-claude/claude-in-amazon-bedrock), which uses the Messages API at `/anthropic/v1/messages` with SSE streaming. For an Anthropic-operated alternative with AWS Marketplace billing and typically same-day feature access, see [Claude Platform on AWS](https://platform.claude.com/docs/en/build-with-claude/claude-platform-on-aws). Existing Bedrock users can follow the [migration guide](https://platform.claude.com/docs/en/build-with-claude/claude-platform-on-aws#migrating-from-amazon-bedrock).
99</Note>
1010 
11<Warning>
12 The latest version of the SDK sends API version `2026-10-21` by default, including through Amazon Bedrock. The ARN-versioned models in the model table on this page don't support `2026-10-21` on Bedrock, and requests to them that send it can return a 400 error. If you call them through the SDK, keep the SDK on the version you use today, and pin that version where you install it so a later install doesn't upgrade it. The Boto3 example sets `anthropic_version` in its request body and isn't affected.
13</Warning>
14 
1115Calling Claude through Bedrock slightly differs from how you would call Claude on the Claude API directly. This guide walks you through completing an API call to Claude on Bedrock using one of Anthropic's [client SDKs](https://platform.claude.com/docs/en/cli-sdks-libraries/overview).
1216 
1317Note that this guide assumes you have already signed up for an [AWS account](https://portal.aws.amazon.com/billing/signup) and configured programmatic access.
Feedback