lean 4 mcp for Claude Code

io.github.mrfentmen/lean-4-mcp

Lean 4 MCP: 20 real tools to read, check, lint, scaffold, build and run Lean 4 code.

client:Claude Code transport:stdio runtime:npm

Install lean 4 mcp in Claude Code

run in your project directory

claude mcp add lean-4-mcp -- npx -y @mrfentmen/lean-4-mcp

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs