Connect your AI assistant to IoT device networks via MQTT. Subscribe to sensor topics, publish commands, monitor device health, and set threshold alerts — all through the Model Context Protocol.
Works with any MQTT 3.1.1/5.0 broker: Mosquitto, HiveMQ, EMQX, AWS IoT Core, Azure IoT Hub, or your local Home Assistant instance.
Overview
MQTT MCP Server
MQTT/IoT Bridge for AI Assistants
Connect your AI assistant to IoT device networks via MQTT. Subscribe to sensor topics, publish commands, monitor device
health, and set threshold alerts — all through the Model Context Protocol.
Works with any MQTT 3.1.1/5.0 broker: Mosquitto, HiveMQ, EMQX, AWS IoT Core, Azure IoT Hub, or your local Home Assistant
instance.
Tools
- connect — Connect to any MQTT broker (TCP, TLS, WebSocket). Supports authentication.
- subscribe — Subscribe to topic patterns with MQTT wildcards (
+,#). Messages buffer in the background. - publish — Publish messages to topics — plain text or JSON. Supports QoS 0/1/2 and retained messages.
- list_topics — Discover active topics on the broker with message counts and payload previews.
- monitor_device — Watch a device topic, auto-parse sensor payloads, compute live statistics.
- set_alert — Define threshold alerts on numeric values. Get notified when sensor readings cross limits.
Installation
{
"mcpServers": {
"mqtt": {
"command": "node",
"args": ["/path/to/mcp-mqtt/dist/index.js"]
}
}
}
Use cases
- Discover all topics on an unfamiliar broker
- Monitor a temperature sensor with auto-computed min/max/avg statistics
- Publish commands to smart devices via natural language
License
MIT — full source on archimedes.market
Server Config
{
"mcpServers": {
"mqtt": {
"command": "node",
"args": [
"/path/to/mcp-mqtt/dist/index.js"
]
}
}
}