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MQTT

io.github.nagarjunr/mqtt · v0.1.0

MCP server for MQTT 5.0 brokers (publish, subscribe, topic discovery).

Connect Runs on your machine

Terminal
claude mcp add mqtt -e MQTT_HOST=<MQTT_HOST> -e MQTT_PORT=<MQTT_PORT> -e MQTT_USERNAME=<MQTT_USERNAME> -e MQTT_PASSWORD=<MQTT_PASSWORD> -e MQTT_USE_TLS=<MQTT_USE_TLS> -- uvx mqtt5-mcp-server==0.1.0
claude_desktop_config.json
{
  "mcpServers": {
    "mqtt": {
      "command": "uvx",
      "args": [
        "mqtt5-mcp-server==0.1.0"
      ],
      "env": {
        "MQTT_HOST": "<MQTT_HOST>",
        "MQTT_PORT": "<MQTT_PORT>",
        "MQTT_USERNAME": "<MQTT_USERNAME>",
        "MQTT_PASSWORD": "<MQTT_PASSWORD>",
        "MQTT_USE_TLS": "<MQTT_USE_TLS>"
      }
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "mqtt": {
      "command": "uvx",
      "args": [
        "mqtt5-mcp-server==0.1.0"
      ],
      "env": {
        "MQTT_HOST": "<MQTT_HOST>",
        "MQTT_PORT": "<MQTT_PORT>",
        "MQTT_USERNAME": "<MQTT_USERNAME>",
        "MQTT_PASSWORD": "<MQTT_PASSWORD>",
        "MQTT_USE_TLS": "<MQTT_USE_TLS>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "mqtt": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "mqtt5-mcp-server==0.1.0"
      ],
      "env": {
        "MQTT_HOST": "<MQTT_HOST>",
        "MQTT_PORT": "<MQTT_PORT>",
        "MQTT_USERNAME": "<MQTT_USERNAME>",
        "MQTT_PASSWORD": "<MQTT_PASSWORD>",
        "MQTT_USE_TLS": "<MQTT_USE_TLS>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

NameDescription
MQTT_HOST
Required
Broker hostname or IP
MQTT_PORT
Optional
Broker port, default 1883 (or 8883 for TLS)
MQTT_USERNAME
Optional
Broker username
MQTT_PASSWORD
Optional, secret
Broker password
MQTT_USE_TLS
Optional
true/false, default false

Details

Package[email protected] (PYPI, stdio)
First published24 Jul 2026
Last updated24 Jul 2026
Registry nameio.github.nagarjunr/mqtt

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