claude-code - 💡(How to fix) Fix [BUG] key is blocked [1 comments, 2 participants]

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anthropics/claude-code#55662Fetched 2026-05-03 04:47:42
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Error Message

API Error: 401 {"error":{"message":"Authentication Error, Key is blocked. Update via /key/unblock if

Error Messages/Logs

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Preflight Checklist

  • I have searched existing issues and this hasn't been reported yet
  • This is a single bug report (please file separate reports for different bugs)
  • I am using the latest version of Claude Code

What's Wrong?

API Error: 401 {"error":{"message":"Authentication Error, Key is blocked. Update via /key/unblock if you're an admin.","type":"auth_error","param":"None","code":"401"}}

What Should Happen?

claude code should process inputs

Error Messages/Logs

Steps to Reproduce

browse to https://anthropic.generative.engine.capgemini.com/

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

92

Claude Code Version

126

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

No response

extent analysis

TL;DR

The most likely fix is to unblock the API key using the /key/unblock endpoint as an admin.

Guidance

  • The error message indicates an authentication issue due to a blocked API key, suggesting that the key needs to be unblocked.
  • To verify the issue, check the API key status and ensure that it is indeed blocked.
  • To mitigate the issue, use the /key/unblock endpoint as an admin to unblock the API key.
  • If the issue persists after unblocking the key, review the authentication flow and API key management to identify any potential misconfigurations.

Notes

The provided information does not include details about the authentication flow or API key management, which might be necessary to fully resolve the issue.

Recommendation

Apply workaround: Use the /key/unblock endpoint to unblock the API key, as this is the explicit solution suggested by the error message.

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