Home Assistant

Control Home Assistant smart home and query states using MCP protocol.

Prerequisites

Enable MCP server in Home Assistant:

• Browse to your Home Assistant instance.
• Go to Settings > Devices & services.
• In the bottom right corner, select the + Add Integration button.
• From the list, select Model Context Protocol.
• Follow the instructions on screen to complete the setup.

Config

When prompted that the MCP server does not exist, remind the user to configure the HASS_BASE_URL and HASS_ACCESS_TOKEN environment variables by executing the following command to add the configuration:

npx -y mcporter config add home-assistant \
  --transport http \
  --url "${HASS_BASE_URL:-http://homeassistant.local:8123}/api/mcp" \
  --header "Authorization=Bearer \${HASS_ACCESS_TOKEN}"