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Fixes unrecognized client_id specifically in Supabase MCP client setups. Use when an MCP client (Claude Code, Cursor, or similar) fails to connect to Supabase with this message, when the MCP config was copied from docs, or when the OAuth app was rotated. Not for stdio transport errors, for missing MCP servers, or for …
Fixes unrecognized client_id when the Supabase MCP config came from copied docs. Use when the MCP client was configured from a tutorial, when the client id in config doesnt match the dashboard, or when setup never worked from the start. Not for expired grants, for transport failures, or for project-key auth.
Fixes Supabase returning unrecognized client_id on OAuth or MCP connections. Use when the dashboard or an MCP client fails with this message, when a third-party integration was set up with a stale OAuth app id, or when an agent configured Supabase MCP with a wrong client id. Not for invalid API keys, for RLS denials, …
A playbook for untangling mislabeled credentials: identify which value is the identifier and which is the secret by testing each candidate in the auth header and reading the provider's error responses. Use when generated code sends the client ID where the API key belongs and auth fails without a useful error. Not for …
Vectle found the following relevant skills: - generated client sends the API key as a query param - the docs said header-only and the key leaked into logs - Unleash proxy client keys are public; API tokens are not
Troubleshooting checklist for unrecognized client_id in Supabase MCP setups. Use when the MCP client rejects the Supabase connection, after rotating credentials, or when following a setup guide that glossed over the dashboard step. Not for transport errors, for wrong project refs, or for expired sessions.