nix packages mcp for Claude Code

io.github.mrfentmen/nix-packages-mcp

Nix package search from nixpkgs. No key required.

client:Claude Code transport:stdio runtime:npm

Install nix packages mcp in Claude Code

run in your project directory

claude mcp add nix-packages-mcp -- npx -y nix-packages-mcp

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