claude-code - 💡(How to fix) Fix [Bug] Anthropic API Error: Out of extra usage despite remaining quota [1 participants]

[{"error":"Error: Could not resolve authentication method. Expected either apiKey or authToken to be set. Or for one of the "X-Api-Key" or "Authorization" headers to be explicitly omitted\n at validateHeaders (/$bunfs/root/claude:527:935)\n at buildHeaders (/$bunfs/root/claude:527:8438)\n at async buildRequest (/$bunfs/root/claude:527:7504)\n at async makeRequest (/$bunfs/root/claude:527:3332)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-08T05:51:00.556Z"},{"error":"Error: Could not resolve authentication method. Expected either apiKey or authToken to be set. Or for one of the "X-Api-Key" or "Authorization" headers to be explicitly omitted\n at validateHeaders (/$bunfs/root/claude:527:935)\n at buildHeaders (/$bunfs/root/claude:527:8438)\n at async buildRequest (/$bunfs/root/claude:527:7504)\n at async makeRequest (/$bunfs/root/claude:527:3332)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-08T05:51:00.556Z"},{"error":"Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"You're out of extra usage. Add more at claude.ai/settings/usage and keep going."},"request_id":"req_011CZqnPEZAjj3ZzvZBnsDFr"}\n at generate (/$bunfs/root/claude:382:26098)\n at makeRequest (/$bunfs/root/claude:527:5356)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-08T05:52:19.501Z"},{"error":"Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"You're out of extra usage. Add more at claude.ai/settings/usage and keep going."},"request_id":"req_011CZqnhxmvEeZuvqSVpXWT8"}\n at generate (/$bunfs/root/claude:382:26098)\n at makeRequest (/$bunfs/root/claude:527:5356)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-08T05:56:33.606Z"}]

TL;DR

Check your usage limits and authentication settings, as the error messages indicate issues with both extra usage and authentication method resolution.

Guidance

• Verify that your account has sufficient extra usage credits by checking the claude.ai/settings/usage page.
• Ensure that either apiKey or authToken is correctly set, or that one of the "X-Api-Key" or "Authorization" headers is explicitly omitted in your request headers.
• Review the error messages for any patterns or common issues that might indicate a specific problem with your requests.
• Check the documentation for the API you are using to ensure you are following the correct authentication and usage guidelines.

Notes

The issue seems to be related to both usage limits and authentication issues, but without more specific information about the API requests being made, it's difficult to provide a more detailed solution.

Recommendation

Apply workaround: Check and adjust your usage limits and authentication settings according to the API documentation and the error messages provided.