Nixpkgs MCP Server

Name: Nixpkgs MCP Server
Availability: InStock
Author: lessuselesss

Supports UI

by lessuselesss

Expose over 80,000 NixOS packages as dynamic tools for your AI agent.

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Works in:claude

Exposes:Tools

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What it does

Provides a dynamic bridge to the massive Nixpkgs repository, allowing AI agents to search for, execute, and permanently install any package from the Nix ecosystem as a tool.

Tools

nixpkgs_search: Search for packages by name or description.
nixpkgs_execute: Run any package on-demand without full registration.
nixpkgs_install_tool: Permanently register a specific Nix package as a dedicated tool.
nixpkgs_list_installed: View all currently registered tools.

Installation

Add the following to your claude_desktop_config.json:

{
  "mcpServers": {
    "nixpkgs": {
      "command": "nix",
      "args": ["run", "github:lessuselesss/nixpkgs-mcp"],
      "env": {}
    }
  }
}

Supported hosts

Confirmed for Claude Desktop via Nix run.

Quick install

nix run github:lessuselesss/nixpkgs-mcp

Information

Pricing: free
Published: 5/1/2026
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Related Apps

Choose your AI client and follow the steps below.

Claude Desktop

{
  "mcpServers": {
    "nixpkgs": {
      "command": "nix",
      "args": ["run", "github:lessuselesss/nixpkgs-mcp"],
      "env": {}
    }
  }
}