# Catch unsupported AWS Bedrock authentication for Claude before requests fail

> We added an early error when AWS_BEDROCK_API_KEY is set for Claude models on AWS Bedrock, which is not a supported authentication path, rather than failing silently later in the request lifecycle.

- Published: 2026-03-26
- Author: Agno Team
- Category: Changelog
- Canonical: https://agno-com-nine.vercel.app/articles/fail-fast-for-unsupported-aws-bedrock-api-key-with-claude-on-aws-bedrock
- Markdown: https://agno-com-nine.vercel.app/articles/fail-fast-for-unsupported-aws-bedrock-api-key-with-claude-on-aws-bedrock.md

We added an early error when `AWS_BEDROCK_API_KEY` is set for Claude models on AWS Bedrock, which is not a supported authentication path, rather than failing silently later in the request lifecycle.