Inspect, debug and evaluate remote MCP servers in your browser

Paste an endpoint URL to test a remote MCP server. mcptest.io negotiates the protocol, handles authorization, and lists its tools, resources and prompts next to the raw JSON-RPC traffic.

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    What a report covers

    • Protocol negotiation across MCP 2026 stateless, 2025 stateful and legacy HTTP+SSE
    • OAuth 2.1 with PKCE, bearer tokens and API keys
    • CORS evidence from a real browser
    • Tool, resource and prompt contracts
    • Shareable reports

    Browse 284 public remote MCP servers in the catalog

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