OpenStatus

OpenStatus

OpenStatus offers a free online MCP server health check tool. Test JSON-RPC initialize, ping, and tools/list handshake directly from your browser with no installation or signup required.

MCP server health checkJSON-RPC testingbrowser-based AI toolno-installation tool
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What is OpenStatus?

OpenStatus is a free online MCP server health check tool that runs entirely in your browser. It tests a Model Context Protocol (MCP) endpoint by sending the exact JSON-RPC calls an AI client would make on first connection—no installation or signup required. Users paste a Streamable HTTP URL, and the tool runs the spec-defined handshake to confirm the server is reachable, speaks MCP correctly, and exposes the tools it promises. It provides a verdict of Healthy, Partial, Authentication Required, or Unreachable, along with per-step latency and full request/response details.

Application scenarios

  • AI client integration testing

    Developers verify that their MCP server works with Claude Desktop, Claude Code, Cursor, Continue, or custom agents before deployment.

  • Debugging MCP server issues

    Quickly identify whether a server is unreachable, returning the wrong content type, missing required JSON-RPC methods, or expecting an auth header.

  • Monitoring MCP endpoints

    Use the tool to run periodic checks and then follow the monitoring guide for continuous monitoring.

  • Validating public MCP servers

    Test servers like `https://hf.co/mcp` or `https://mcp.context7.com/mcp` without any headers.

  • Sharing diagnostic reports

    The only data persisted is the report you explicitly choose to share, making it suitable for collaborative debugging.

  • Learning MCP handshake flow

    Developers new to MCP can see the exact JSON-RPC requests and responses for initialize, ping, and tools/list calls.

Core Features

  • Three-step handshake

    Runs `initialize`, `notifications/initialized`, and `ping` + `tools/list` in the same order an MCP client would.

  • Per-step inspection

    Click any row in the result table to open the exact JSON-RPC request and response, along with per-step latency, negotiated protocol version, server info, and session id.

  • Verdict output

    Returns one of four clear verdicts: GOOD (Healthy), WARN (Partial — server speaks MCP but exposes no tools), AUTH (Authentication Required — server returned 401 with a Bearer challenge), or DOWN (Unreachable — DNS/connection/parse failure).

  • Authorization header support

    Add an Authorization header if the server requires it; public servers can be tested with no headers.

  • Content-Type enforcement

    Sends `Content-Type: application/json` and `Accept: application/json, text/event-stream` on every request.

  • Browser-local execution

    The whole flow takes about 30 seconds and never leaves your browser session — only the report you explicitly share is persisted.

  • No install or signup

    Works directly from the browser with zero setup.

Target users

  • MCP server developers who need to validate their endpoints before integrating with AI clients.
  • AI agent builders using Claude Desktop, Claude Code, Cursor, Continue, or custom agents that rely on MCP servers.
  • DevOps engineers responsible for monitoring MCP infrastructure in production.
  • QA engineers testing MCP server compliance and error handling.
  • Technical writers documenting MCP server setup and troubleshooting.

How to use OpenStatus?

  1. Visit the OpenStatus MCP Health Check page at https://www.openstatus.dev/play/mcp-health.
  2. Paste your MCP server URL (any Streamable HTTP endpoint works, e.g., https://hf.co/mcp).
  3. Optionally add an Authorization header if the server requires authentication.
  4. Click "Submit" to run the check.
  5. Inspect each step by clicking rows in the result table to see JSON-RPC requests, responses, latency, protocol version, server info, and session id.
  6. Share the report if needed — the tool only persists data you explicitly choose to share.

Effect review

OpenStatus delivers exactly what it promises: a fast, browser-based MCP health check that mimics real AI client behavior. The three-step handshake and clear verdicts (GOOD, WARN, AUTH, DOWN) make it trivial to diagnose server issues that a simple HTTP status check would miss. The ability to inspect individual JSON-RPC requests and responses with latency data is invaluable for debugging. For a free tool with no signup required, it's a practical and reliable utility for anyone working with MCP servers.

Frequently Asked Questions

What is OpenStatus?
OpenStatus is a free online tool that allows you to test MCP server health checks, including JSON-RPC initialize, ping, and tools/list handshake, directly from your browser without installation or signup.
Do I need to install anything to use OpenStatus?
No, OpenStatus works entirely in your browser with no installation or signup required.
What MCP server endpoints can I test with OpenStatus?
You can test JSON-RPC initialize, ping, and tools/list handshake endpoints.
Is OpenStatus free to use?
Yes, OpenStatus is completely free and requires no account or payment.
Can I use OpenStatus on any device?
Yes, as long as you have a modern web browser, OpenStatus works on any device.
How do I start a health check on OpenStatus?
Simply visit the OpenStatus website, enter your MCP server URL, and select the endpoints you want to test—all from your browser.

OpenStatus - AI Tool Detail

OpenStatus offers a free online MCP server health check tool. Test JSON-RPC initialize, ping, and tools/list handshake directly from your browser with no installation or signup required.

Category：API services

Visit Link：https://www.openstatus.dev/play/mcp-health

Tags：MCP server health check、JSON-RPC testing、browser-based AI tool、no-installation tool