claude-code - 💡(How to fix) Fix [Bug] Anthropic API Error: 400 Invalid Request - Out of Extra Usage Despite Low Session/Weekly Usage [1 comments, 2 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 uy.validateHeaders (file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:357:930)\n at uy.buildHeaders (file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:357:8412)\n at process.processTicksAndRejections (node:internal/process/task_queues:95:5)\n at async uy.buildRequest (file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:357:7470)\n at async uy.makeRequest (file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:357:3309)\n at async OtA.model (file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:3354:18888)\n at async OtA (file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:2692:39781)\n at async ib2 (file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:3354:19040)\n at async file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:3354:13007\n at async Wo1 (file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:3354:4492)","timestamp":"2026-04-08T10:51:07.164Z"},{"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 uy.validateHeaders (file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:357:930)\n at uy.buildHeaders (file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:357:8412)\n at process.processTicksAndRejections (node:internal/process/task_queues:95:5)\n at async uy.buildRequest (file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:357:7470)\n at async uy.makeRequest (file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:357:3309)\n at async OtA.model (file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:3354:18888)\n at async OtA (file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:2692:39781)\n at async ib2 (file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:3354:19040)\n at async file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:3354:13007\n at async Wo1 (file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:3354:4492)","timestamp":"2026-04-08T10:51:07.165Z"},{"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 uy.validateHeaders (file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:357:930)\n at uy.buildHeaders (file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:357:8412)\n at process.processTicksAndRejections (node:internal/process/task_queues:95:5)\n at async uy.buildRequest (file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:357:7470)\n at async uy.makeRequest (file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:357:3309)\n at async OtA.model (file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:3354:18888)\n at async OtA (file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:2692:39781)\n at async ib2 (file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:3354:19040)\n at async file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:3354:12775\n at async Wo1 (file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:3354:4492)","timestamp":"2026-04-08T10:51:07.203Z"},{"error":"WiA: Insufficient permissions for global npm install.\n at Iv1 (file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:1862:998)\n at process.processTicksAndRejections (node:internal/process/task_queues:95:5)\n at async yKA (file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:1872:43)\n at async file:///usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js:2809:32485","timestamp":"2026-04-08T10:51:26.259Z"},{"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_011CZrBCEV5A1ea

TL;DR

The most likely fix is to verify authentication settings, as the error logs indicate an issue with resolving the authentication method.

Guidance

• Check the authentication method configuration to ensure either apiKey or authToken is set correctly.
• Verify that the "X-Api-Key" or "Authorization" headers are properly configured.
• Review the error logs to identify any patterns or repeated errors that may indicate a specific issue with the authentication process.
• Consider checking the permissions for the npm install process, as one of the error logs mentions insufficient permissions.

Example

No specific code example can be provided without more context, but reviewing the authentication configuration and headers is a good starting point.

Notes

The provided error logs are truncated, which may limit the ability to identify the root cause. Additionally, the issue may be related to the specific version of the @anthropic-ai/claude-code package being used.

Recommendation

Apply a workaround by verifying and updating the authentication settings, as the error logs suggest an issue with the authentication method. This may involve checking the configuration files or environment variables to ensure the correct credentials are being used.