lean4 (MCP Server)

Name: lean4 MCP Server
Author: leanprover

GitHub

Lean 4 programming language and theorem prover

8,785 stars Lean MCP Ready Full Docs Skills View Markdown #lean #lean4

Documentation Agent Skills & Rules MCP Server API Specification

Claude Desktop Configuration

Add to ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "lean4": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-lean4"
      ]
    }
  }
}

Cursor MCP Configuration

Add to .cursor/mcp.json in your workspace root

{
  "mcpServers": {
    "lean4": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-lean4"
      ]
    }
  }
}

NPX / Command Line Execution

Run directly with Node.js or NPX package runner

npx -y @modelcontextprotocol/server-lean4

Claude Desktop Configuration

Cursor MCP Configuration

NPX / Command Line Execution

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