Provides tools for browsing and controlling Home Assistant devices and services, including listing entities, checking device states, and calling services to control lights, switches, sensors, and other smart home devices.
Home Assistant MCP Server
A Model Context Protocol (MCP) server that provides access to Home Assistant entities and services.
Features
List Entities: Browse all your Home Assistant devices (lights, switches, sensors, etc.)
Get Entity State: Check the current state and attributes of any entity
Call Services: Control devices (turn lights on/off, adjust climate, etc.)
List Services: Discover available Home Assistant services
Installation
Configuration
Set the following environment variables:
HASS_HOST: Your Home Assistant URL (e.g.,https://your-instance.ui.nabu.casa)HASS_TOKEN: Your Home Assistant long-lived access token
Usage with VS Code
Add to your VS Code settings.json:
Available Tools
list_entities
List all Home Assistant entities, optionally filtered by domain.
Parameters:
domain(optional): Filter by domain (e.g., "light", "switch", "sensor")
get_entity_state
Get the current state and attributes of a specific entity.
Parameters:
entity_id(required): The entity ID (e.g., "light.living_room")
call_service
Call a Home Assistant service to control devices.
Parameters:
domain(required): Service domain (e.g., "light", "switch")service(required): Service name (e.g., "turn_on", "turn_off")entity_id(optional): Target entity IDdata(optional): Additional service data (brightness, color, etc.)
list_services
List all available Home Assistant services.
License
MIT