MCP discovery checker

Enter a domain to see every way it advertises a remote MCP server: Server Cards, OAuth metadata, the official MCP Registry and the mcptest.io catalog. Each document is validated, and every endpoint found opens in the inspector with one click.

Requests run from your browser. When a document has no CORS headers, it is read through the mcptest proxy, which only fetches discovery documents (.well-known paths, /server-card and the registry API), and the result says so.