Install MQTT for Claude Desktop
Claude Desktop reads mcpServers from claude_desktop_config.json. Restart the app after saving.
- Open ~/Library/Application Support/Claude/claude_desktop_config.json on macOS, %APPDATA%\Claude\claude_desktop_config.json on Windows, or ~/.config/Claude/claude_desktop_config.json on Linux.
- Paste the JSON config below.
- Replace placeholder secrets, then restart the client if it does not reload on its own.
~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"nagarjunr-mqtt": {
"command": "uvx",
"args": [
"mqtt5-mcp-server"
],
"env": {
"MQTT_HOST": "",
"MQTT_PORT": "",
"MQTT_USERNAME": "",
"MQTT_PASSWORD": "YOUR_MQTT_PASSWORD",
"MQTT_USE_TLS": ""
}
}
}
}