claude-code - 💡(How to fix) Fix [BUG] 401 "Access denied due to missing subscription key" error in v2.1.94 (regression from v2.1.92) [1 comments, 2 participants]

Starting with v2.1.94, Claude Code returns a 401 error on every request. The same setup works correctly on v2.1.92.

Error Messages/Logs

1. Error is returned immediately This appears to be a regression introduced in v2.1.94. The error message format ("subscription key") suggests it may be related to a change in how the API key is

TL;DR

Downgrade to v2.1.92 to resolve the 401 error issue with Claude Code.

Guidance

• The issue appears to be a regression introduced in v2.1.94, so downgrading to the last working version (v2.1.92) is a viable workaround.
• Verify that the error is resolved by running Claude Code commands after downgrading.
• If downgrading is not feasible, investigate how the API key is passed in request headers, as the error message suggests a potential issue with this process.
• Consider reporting this issue to the developers or waiting for a patch release that addresses this regression.

Example

No code snippet is provided, as the issue does not require a specific code change to resolve.

Notes

The provided workaround (downgrading to v2.1.92) may not be a long-term solution, and the root cause of the issue (related to the API key in request headers) should be investigated further.

Recommendation

Apply workaround: Downgrade to v2.1.92, as it is a confirmed working version and allows for continued use of Claude Code while the regression is addressed.