call_service_tool

Execute Home Assistant services via the Hass-MCP server. Specify domain, service, and optional data to control or automate smart home devices and workflows.

Instructions

Call any Home Assistant service (low-level API access)

Args: domain: The domain of the service (e.g., 'light', 'switch', 'automation') service: The service to call (e.g., 'turn_on', 'turn_off', 'toggle') data: Optional data to pass to the service (e.g., {'entity_id': 'light.living_room'})

Returns: The response from Home Assistant (usually empty for successful calls)

Examples: domain='light', service='turn_on', data={'entity_id': 'light.x', 'brightness': 255} domain='automation', service='reload' domain='fan', service='set_percentage', data={'entity_id': 'fan.x', 'percentage': 50}

Input Schema

Name	Required	Description	Default
`data`	No
`domain`	Yes
`service`	Yes

Input Schema (JSON Schema)

{
  "properties": {
    "data": {
      "anyOf": [
        {
          "type": "object"
        },
        {
          "type": "null"
        }
      ],
      "default": null,
      "title": "Data"
    },
    "domain": {
      "title": "Domain",
      "type": "string"
    },
    "service": {
      "title": "Service",
      "type": "string"
    }
  },
  "required": [
    "domain",
    "service"
  ],
  "title": "call_service_toolArguments",
  "type": "object"
}

Hass-MCP