MCP Endpoint Checker

Paste an MCP server URL and Robauto runs the Streamable HTTP handshake against it: initialize, tools/list, protocol version negotiation and CORS/Accept-header checks. Results show every tool, its annotations, and whether the endpoint answers correctly for machine clients.

Common failure: a static site returns <!doctype html> for POST requests, so clients report "not valid JSON". A real MCP endpoint answers JSON-RPC on POST.

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