{"version":"2.1.90","anchor":"claude-platform-on-aws-provider","canonical_anchor":"claude-platform-on-aws-provider","heading":"Claude Platform on AWS Provider","tier":null,"area":null,"scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.90\/e\/claude-platform-on-aws-provider","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.90","markdown":"### Claude Platform on AWS Provider\n\n**What**\n\nClaude Code now supports \"Claude Platform on AWS\" as a first-class API provider, alongside Bedrock, Vertex, and Foundry.\n\n**Usage**\n\n`CLAUDE_CODE_USE_ANTHROPIC_AWS=1 claude` **Details** - Set `CLAUDE_CODE_USE_ANTHROPIC_AWS=1` to enable the provider - Requires `ANTHROPIC_AWS_WORKSPACE_ID` (or `workspaceId` in constructor) - Optionally set `ANTHROPIC_AWS_BASE_URL` or let it derive from `AWS_REGION` \/ `AWS_DEFAULT_REGION` (pattern: `https:\/\/aws-external-anthropic.{region}.api.aws`) - Supports AWS SigV4 request signing via `@aws-sdk\/credential-providers` - Supports explicit credentials via `awsAccessKey` + `awsSecretAccessKey`, AWS profile, or a custom `providerChainResolver` - Set `CLAUDE_CODE_SKIP_ANTHROPIC_AWS_AUTH=1` to skip authentication (for development\/testing) - Fast mode is not available on this provider (same as Bedrock, Vertex, and Foundry) **Evidence** AnthropicAws client class (search for `\"Claude Platform on AWS\"` and `\"ANTHROPIC_AWS_WORKSPACE_ID\"`)"}