mcp-nixos
MCP server for accurate NixOS package/option info in AI assistants. mcp-nixos is a Model Context Protocol (MCP) server maintained by utensils. It connects to MCP-compatible clients such as Claude Desktop, Cursor, Cline, and other agents that speak the protocol. It exposes 11 tools, including nixos_search, nixos_info, nixos_stats, home_manager_search, home_manager_info, home_manager_options_by_prefix, home_manager_list_options and darwin_search, that an agent can call directly. It is categorized under AI/Assistant and Tool/NixOS.
What is this MCP
MCP-NixOS is a Model Context Protocol server that provides AI assistants with accurate, real-time information about NixOS packages, system options, Home Manager settings, and nix-darwin configurations, preventing hallucinations about non-existent packages or configurations.
How to use this MCP
Configure your AI assistant to connect to the MCP server via JSON configuration, then query using URI patterns likenixos://package/{name} or tools like nixos_search(). The server handles caching and channel management automatically.
What this MCP can be used for
Enabling AI assistants to provide correct NixOS-related information, searching packages/options across channels, accessing detailed configuration documentation, and maintaining offline-available cached data for reliability.
AIMCP authority
DR and traffic signal for the AIMCP public domain.
Frequently asked questions
What is the mcp-nixos MCP server?
mcp-nixos is a Model Context Protocol server from utensils. It lets MCP-compatible AI clients call its tools over a standard interface, so agents like Claude, Cursor, and Cline can use it without custom integration.
How do I connect mcp-nixos to my AI client?
Add mcp-nixos to your client's MCP configuration using the stdio or SSE connection shown in the usage examples on this page, then restart the client to load the server.
What tools does mcp-nixos provide?
mcp-nixos provides 11 tools: nixos_search, nixos_info, nixos_stats, home_manager_search, home_manager_info, home_manager_options_by_prefix, home_manager_list_options, darwin_search, darwin_info, darwin_options_by_prefix and darwin_list_options.
Is mcp-nixos free to use?
mcp-nixos is listed on AIMCP for free. Any API keys or accounts required by the underlying service are set by its provider.
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