{
  "bedrock_facts": [
    {
      "id": "brk_bearer_auth",
      "model_id": null,
      "model_family": "all models",
      "category": "auth differences",
      "description": "Bedrock supports bearer-token authentication (via the AWS_BEARER_TOKEN_BEDROCK environment variable or programmatically) as an alternative to full AWS SigV4-signed credentials — useful in corporate environments needing Bedrock access without managing IAM roles/AWS credentials directly. Bearer-token auth is supported in the C#, Go, and Java SDKs; the PHP, Python, TypeScript, and Ruby SDKs use AWS SigV4 signing only.",
      "source_url": "https://platform.claude.com/docs/en/build-with-claude/claude-on-amazon-bedrock",
      "created_at": "2026-07-02 06:03:26",
      "cite_as": "https://subagentbedrock.com/api/bedrock-facts/brk_bearer_auth"
    },
    {
      "id": "brk_pdf_support",
      "model_id": null,
      "model_family": "all models",
      "category": "auth differences",
      "description": "PDF support on Bedrock is available through both the Converse API and the InvokeModel API. Visual PDF analysis (charts, images, layouts) via the Converse API requires citations to be enabled; without citations only basic text extraction is available. The InvokeModel API allows full PDF-processing control without forced citations.",
      "source_url": "https://platform.claude.com/docs/en/build-with-claude/pdf-support",
      "created_at": "2026-07-02 06:03:26",
      "cite_as": "https://subagentbedrock.com/api/bedrock-facts/brk_pdf_support"
    },
    {
      "id": "brk_sigv4_default",
      "model_id": null,
      "model_family": "all models",
      "category": "auth differences",
      "description": "The default/primary Bedrock auth path is AWS SigV4 request signing using standard AWS credential resolution (~/.aws/credentials, AWS_ACCESS_KEY_ID/AWS_SECRET_ACCESS_KEY env vars, or temporary session-token credentials) — distinct from the direct Anthropic API's single ANTHROPIC_API_KEY bearer-header auth.",
      "source_url": "https://platform.claude.com/docs/en/build-with-claude/claude-on-amazon-bedrock",
      "created_at": "2026-07-02 06:03:26",
      "cite_as": "https://subagentbedrock.com/api/bedrock-facts/brk_sigv4_default"
    }
  ]
}