NixOS

MCP-NixOS provides a server for interacting with NixOS packages, system options, Home Manager configuration, and nix-darwin macOS configuration through standardized URL schemes. Developed by James Brink, this Python implementation features multi-level caching with filesystem persistence, detailed documentation integration, and support for advanced search capabilities including hierarchical paths and version filtering. The architecture separates concerns into cache, clients, contexts, resources, and tools components, making it ideal for developers seeking programmatic access to Nix ecosystem configuration options and package information through AI assistants.