Hass-MCP

What it does

Connects AI assistants to your Home Assistant instance, allowing them to monitor device states, control smart home hardware, and manage automations.

Tools

• get_entity: Get the state of a specific entity.
• entity_action: Turn devices on, off, or toggle them.
• list_entities: List entities with optional domain filtering.
• search_entities_tool: Find entities matching a specific query.
• domain_summary_tool: Get a high-level summary of a domain's entities.
• list_automations: List all configured automations.
• call_service_tool: Execute any Home Assistant service.
• get_history: Retrieve the state history of an entity.
• get_error_log: Access the Home Assistant error log.
• restart_ha: Trigger a Home Assistant restart.

Installation

Add the following to your claude_desktop_config.json:

{
  "mcpServers": {
    "hass-mcp": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "HA_URL",
        "-e",
        "HA_TOKEN",
        "voska/hass-mcp"
      ],
      "env": {
        "HA_URL": "http://homeassistant.local:8123",
        "HA_TOKEN": "YOUR_LONG_LIVED_TOKEN"
      }
    }
  }
}

Supported hosts

• Claude Desktop
• Cursor
• Claude Code (CLI)