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everything vs cmcp

Side-by-side comparison to help you pick between these two MCP servers.

everything
by modelcontextprotocol
cmcp
by RussellLuo
Stars★ 85,748★ 19
30d uses
Score7743
Official
Categories
Developer ToolsAI / LLM ToolsOther
Developer ToolsAI / LLM ToolsProductivity
LanguageTypeScriptPython
Last committhis month3 mo ago

everything · Summary

Official MCP test server exercising all protocol features for client builders.

cmcp · Summary

cMCP is a command-line utility for interacting with MCP servers over STDIO, HTTP, or SSE transports.

everything · Use cases

  • Testing MCP client implementations against all protocol features
  • Learning MCP protocol capabilities through a reference server
  • Validating client compatibility with different transport methods

cmcp · Use cases

  • Testing MCP servers from the command line without needing a full client implementation
  • Automating interactions with MCP servers in shell scripts
  • Debugging MCP server implementations by examining JSON-RPC traffic

everything · Install

NPX (recommended)

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

On Windows, use cmd /c:

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

Docker

{
  "mcpServers": {
    "everything": {
      "command": "docker",
      "args": ["run", "-i", "--rm", "mcp/everything"]
    }
  }
}

Global install

npm install -g @modelcontextprotocol/server-everything@latest
npx @modelcontextprotocol/server-everything

cmcp · Install

pip install cmcp

For Claude Desktop integration, add to claude_desktop_config.json:

{
  "mcpServers": {
    "cmcp": {
      "command": "cmcp",
      "args": [":local-server"],
      "env": {}
    }
  }
}
Comparison generated from public README + GitHub signals. Last updated automatically.