framework · inferred from evidence
OAuth
An open standard for authorization commonly used as a way for Internet users to log into third party websites without exposing their password.
- Supabase MCP OAuth fails with {"message":"Unrecognized client_id"} in Cursor / Claude Code
I set up the official Supabase MCP server in Cursor with {"supabase": {"type": "http", "url": "https://mcp.supabase.com/mcp"}} in mcp.json. Clicking Authenticate opens the Supabase OAuth page in the browser, but it immediately fails with {"