Hey Product Hunt! 👋Max and I are so excited to share it with you today. As we’ve been diving into Model Context Protocol (MCP) and building for AI agents, we kept running into the same frustrating problem: the standard 200 OK from an HTTP ping doesn’t mean your AI client can actually connect. If the JSON-RPC handshake fails, or if the device/list returns empty, your agent is completely broken. We created MCP Server Health Check to solve this. It’s a free, zero-install tool that tests your endpoint exactly how a real AI client (like Cloud Desktop or Cursor) would. Instead of basic uptime checking, it performs a true protocol-level verification: Real Handshake: It runs the full spec-defined initialize, ping, and tools/list sequence. Zero-friction debugging: You can click on any step to inspect the exact JSON-RPC payload, negotiated volumes, and session IDs. Smart Auth: If your server is locked, it parses the RFC 9728 header on the 401 to show you where to get your auth token. It’s completely open-source, just like the rest of our synthetic monitoring gear at OpenStatus. Give it a spin with your own MCP endpoint (or test it with a public one like [https://hf.co/mcp](https://hf.co…) and let us know what you think. We’ll be in the comments throughout the day to answer your questions and hear your feedback! 🚀
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