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MCP OAuth Debugger
Remote MCP OAuth checklist

Inspect MCP OAuth callback URLs, headers, token claims, and session hints without uploading data.

Input / 输入

Output / 输出

Paste input and run the checker.

MCP OAuth Debugger use cases

Use this for remote MCP 401 errors, missing mcp-session-id headers, invalid_grant, invalid_token, and OAuth callback mismatch debugging.

Scope and privacy

The checker runs locally in this browser and does not upload the pasted input. Remove secrets before pasting. Results are static evidence from the supplied text, not proof of live server behavior, security, compatibility, or approval.

Verification workflow

  1. Use a redacted, minimal failing example.
  2. Fix definite syntax or metadata errors first.
  3. Test the real endpoint with official inspectors and representative tasks.
  4. Add a regression test before publishing.

Related wiki

Primary references