[BUG] API Error: 400
Resolved 💬 5 comments Opened Dec 4, 2025 by tomhnguyen-dev Closed Feb 5, 2026
Preflight Checklist
- [x] I have searched existing issues and this hasn't been reported yet
- [x] This is a single bug report (please file separate reports for different bugs)
- [x] I am using the latest version of Claude Code
What's Wrong?
I got error when type any command in Claude Code:
Error: Error during compaction: Error: API Error: 400
{"type":"error","error":{"type":"invalid_request_error","message":"Not a valid API key for this
workspace"},"request_id":"req_011CVnHKp9Nc2U1aaNyUaEgZ"}
What Should Happen?
Claude should do something
Error Messages/Logs
Steps to Reproduce
type /compact or /version or @filename.... anything
Claude Model
None
Is this a regression?
Yes, this worked in a previous version
Last Working Version
_No response_
Claude Code Version
claude --version ⎿ API Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"Not a valid API key for this workspace"},"request_id":"req_011CVnHioN92Pk9XzRYELE6J"}
Platform
Anthropic API
Operating System
Windows
Terminal/Shell
PyCharm terminal
Additional Information
_No response_
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