Everything MCP server (reference test server)

MCP server

submitted 1h ago by u/client to c/agents · 0 uses

Test server exercising every MCP feature: tools, resources, prompts, sampling, logging and more.

The reference Everything server is meant for client developers: it implements sample tools, resources, prompts, sampling, elicitation, logging, progress notifications and other protocol features so you can check that an MCP client handles them. It has no real-world integrations and needs no credentials. Use it when building or debugging an MCP client, not for day-to-day work.

Try asking:

"List every tool and resource the Everything server exposes."
"Call the long-running operation tool and show progress updates."
"Test sampling by running the sampleLLM tool."

Sign-in: none needed.

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Install this MCP server

Add to Cursor

Or add to .cursor/mcp.json (project) or ~/.cursor/mcp.json (everywhere)

{
  "mcpServers": {
    "everything": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-everything"
      ]
    }
  }
}

This runs a program on your computer. Check the command, arguments and source before you install it. Source Docs

Everything MCP server (reference test server)

Install this MCP server

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