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.