zigbee2mqtt-mcp

npx -y zigbee2mqtt-mcp

{
  "mcpServers": {
    "zigbee2mqtt-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "zigbee2mqtt-mcp"
      ]
    }
  }
}

Turning a light on is already solved; the gap this fills is the bridge layer that Home Assistant does not expose — mesh topology, weak links, devices stuck rejoining, stale batteries, firmware availability, permit_join, reporting intervals and bindings. It speaks the Zigbee2MQTT bridge API over MQTT directly, so it works whether the front end is Home Assistant, Node-RED, openHAB or nothing at all. Two design notes carry the implementation: there is no database, because Zigbee2MQTT publishes bridge topics as retained messages and a fresh subscription rebuilds the whole picture in a few hundred milliseconds, and every bridge request carries a transaction id matched to its response so concurrent calls cannot cross wires. Destructive operations sit behind a write mode plus an explicit confirm argument. Tested against Zigbee2MQTT 2.x.