MCP server for Sparkplug B: node/device discovery, metrics, commands, host state over MQTT.
To add Sparkplug B to Claude, run the install command below or copy the ready-made config for Claude Code, Claude Desktop, Cursor and VS Code further down. Restart your client after adding it and its tools show up in your next conversation. It needs 7 environment variables, listed below.
Install
uvx sparkplug-b-mcp-server@0.1.0Environment variables
SPARKPLUG_MQTT_HOSTSet in your MCP configSPARKPLUG_HOST_IDSet in your MCP configSPARKPLUG_MQTT_PORTSet in your MCP configSPARKPLUG_MQTT_USERNAMESet in your MCP configSPARKPLUG_MQTT_PASSWORDSet in your MCP configSPARKPLUG_MQTT_USE_TLSSet in your MCP configSPARKPLUG_GROUP_IDSet in your MCP configInstall with your client
claude mcp add sparkplug-b --env SPARKPLUG_MQTT_HOST=<YOUR_SPARKPLUG_MQTT_HOST> --env SPARKPLUG_HOST_ID=<YOUR_SPARKPLUG_HOST_ID> --env SPARKPLUG_MQTT_PORT=<YOUR_SPARKPLUG_MQTT_PORT> --env SPARKPLUG_MQTT_USERNAME=<YOUR_SPARKPLUG_MQTT_USERNAME> --env SPARKPLUG_MQTT_PASSWORD=<YOUR_SPARKPLUG_MQTT_PASSWORD> --env SPARKPLUG_MQTT_USE_TLS=<YOUR_SPARKPLUG_MQTT_USE_TLS> --env SPARKPLUG_GROUP_ID=<YOUR_SPARKPLUG_GROUP_ID> -- uvx sparkplug-b-mcp-server@0.1.0
Run this in a terminal to add the server to Claude Code.
What this does
Sparkplug B exposes a set of tools to Claude over the Model Context Protocol. After you add it to claude_desktop_config.json (snippet above) and restart Claude Desktop, those tools become callable inside any conversation.
Requirements
This server needs the following environment variables to be set before it can run:
SPARKPLUG_MQTT_HOST SPARKPLUG_HOST_ID SPARKPLUG_MQTT_PORT SPARKPLUG_MQTT_USERNAME SPARKPLUG_MQTT_PASSWORD SPARKPLUG_MQTT_USE_TLS SPARKPLUG_GROUP_ID
Set these via the env object in your MCP config (see claude_desktop_config.json snippet above).
Frequently asked questions
How do I install Sparkplug B?
Run the Claude Code command in the install section to add Sparkplug B to Claude Code, or copy the ready-made config for your client from the install section on this page. Restart your client afterwards and the tools appear in your next conversation.
Which clients work with Sparkplug B?
This page carries setup and config for Claude Code, Claude Desktop, Cursor and VS Code. Any other MCP client that accepts a standard server config can connect to Sparkplug B as well.
Does Sparkplug B need an API key?
Yes. Before it can run, set these environment variables: SPARKPLUG_MQTT_HOST, SPARKPLUG_HOST_ID, SPARKPLUG_MQTT_PORT, SPARKPLUG_MQTT_USERNAME, SPARKPLUG_MQTT_PASSWORD, SPARKPLUG_MQTT_USE_TLS, SPARKPLUG_GROUP_ID. They go in the env block of your MCP config.
Imported from the Official MCP Registry. The details above come from the registry entry; the maker can claim this listing to correct them, add docs, and see its traffic.
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