homeassistant-mcp-server

You can control Home Assistant devices by connecting your AI assistant via Model Context Protocol, enabling structured tool calls to manage lights, climate, locks, media, vacuums, and covers through natural language commands.

Yes, Home Assistant MCP supports triggering, enabling, and disabling automations and scenes. It also allows querying entity states via read-only resources and calling Home Assistant services for comprehensive smart home automation management.

You need a valid Home Assistant host URL and a long-lived access token. Configure your MCP client with these credentials using the HASS_HOST and HASS_TOKEN variables to establish the connection for device control.

The system uses BM25-ranked tool discovery to search and retrieve only the relevant smart home tools. This context-efficient mechanism keeps the AI's context lean while ensuring precise device control and state querying.

Yes, it uses FastMCP-based async execution to efficiently handle read-only resource access and device control commands. This ensures responsive smart home automation and state querying without blocking operations.

You can manage common smart home domains including lights, climate, covers, locks, media players, and vacuums. The AI assistant can turn devices on or off, set brightness and color, and trigger automations across these categories.