[BUG] Authentication fails immediately after successful /login in Claude Code v1.0.71
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Title: Authentication fails immediately after successful /login in
Claude Code v1.0.71
Description:
Bug Report
Version: Claude Code v1.0.71Platform: macOS (Darwin
24.6.0)Installation: Native (Homebrew)
Summary
After successfully logging in with /login, Claude Code immediately
shows "Invalid API key" for any user input and becomes completely
unusable. This appears to be a critical authentication regression in
v1.0.71.
Steps to Reproduce
- Start Claude Code in any directory
- Run /login and select "Anthropic Console account"
- Complete OAuth authentication successfully (shows "Login
successful")
- Try to send any message to Claude
- Claude Code responds with "Invalid API key · Please run /login"
Expected Behavior
After successful OAuth login, Claude Code should accept and process
user messages normally.
Actual Behavior
- /login shows "Login successful"
- Status bar continues to show "Missing API key · Run /login"
- Any user input results in "Invalid API key · Please run /login"
- Claude Code becomes completely unusable
Additional Context
- Authentication works from some directories but not others
(directory-specific bug)
- OAuth credentials are stored correctly in config but not recognized
by Claude Code
- Issue persists across multiple login attempts
- Environment variable ANTHROPIC_API_KEY was previously rejected and is
in the rejected list
- /status shows Auth Token: none even after successful login
Configuration Details
- installMethod: "unknown" (may be related)
- Had MCP server configured (BigQuery) but removed it during
troubleshooting
- Config file was previously large (4.6MB) due to excessive
conversation history
- Issue persists even after cleaning config file
Workarounds Attempted
- Multiple /login attempts
- Unsetting ANTHROPIC_API_KEY environment variable
- Resetting project-specific configuration
- Removing and re-adding API keys
- Installing Google Cloud SDK and Python 3.11 (for MCP server)
Impact
This makes Claude Code completely unusable for affected users. The
authentication system appears to have a critical regression that
prevents normal operation despite successful login.
8 Comments
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