Sparkplug B

io.github.nagarjunr/sparkplug-b · v0.1.0

MCP server for Sparkplug B: node/device discovery, metrics, commands, host state over MQTT.

Source code Set it up

Connect Runs on your machine

Terminal

claude mcp add sparkplug-b -e SPARKPLUG_MQTT_HOST=<SPARKPLUG_MQTT_HOST> -e SPARKPLUG_HOST_ID=<SPARKPLUG_HOST_ID> -e SPARKPLUG_MQTT_PORT=<SPARKPLUG_MQTT_PORT> -e SPARKPLUG_MQTT_USERNAME=<SPARKPLUG_MQTT_USERNAME> -e SPARKPLUG_MQTT_PASSWORD=<SPARKPLUG_MQTT_PASSWORD> -e SPARKPLUG_MQTT_USE_TLS=<SPARKPLUG_MQTT_USE_TLS> -e SPARKPLUG_GROUP_ID=<SPARKPLUG_GROUP_ID> -- uvx sparkplug-b-mcp-server==0.1.0

claude_desktop_config.json

{
  "mcpServers": {
    "sparkplug-b": {
      "command": "uvx",
      "args": [
        "sparkplug-b-mcp-server==0.1.0"
      ],
      "env": {
        "SPARKPLUG_MQTT_HOST": "<SPARKPLUG_MQTT_HOST>",
        "SPARKPLUG_HOST_ID": "<SPARKPLUG_HOST_ID>",
        "SPARKPLUG_MQTT_PORT": "<SPARKPLUG_MQTT_PORT>",
        "SPARKPLUG_MQTT_USERNAME": "<SPARKPLUG_MQTT_USERNAME>",
        "SPARKPLUG_MQTT_PASSWORD": "<SPARKPLUG_MQTT_PASSWORD>",
        "SPARKPLUG_MQTT_USE_TLS": "<SPARKPLUG_MQTT_USE_TLS>",
        "SPARKPLUG_GROUP_ID": "<SPARKPLUG_GROUP_ID>"
      }
    }
  }
}

~/.cursor/mcp.json

{
  "mcpServers": {
    "sparkplug-b": {
      "command": "uvx",
      "args": [
        "sparkplug-b-mcp-server==0.1.0"
      ],
      "env": {
        "SPARKPLUG_MQTT_HOST": "<SPARKPLUG_MQTT_HOST>",
        "SPARKPLUG_HOST_ID": "<SPARKPLUG_HOST_ID>",
        "SPARKPLUG_MQTT_PORT": "<SPARKPLUG_MQTT_PORT>",
        "SPARKPLUG_MQTT_USERNAME": "<SPARKPLUG_MQTT_USERNAME>",
        "SPARKPLUG_MQTT_PASSWORD": "<SPARKPLUG_MQTT_PASSWORD>",
        "SPARKPLUG_MQTT_USE_TLS": "<SPARKPLUG_MQTT_USE_TLS>",
        "SPARKPLUG_GROUP_ID": "<SPARKPLUG_GROUP_ID>"
      }
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "sparkplug-b": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "sparkplug-b-mcp-server==0.1.0"
      ],
      "env": {
        "SPARKPLUG_MQTT_HOST": "<SPARKPLUG_MQTT_HOST>",
        "SPARKPLUG_HOST_ID": "<SPARKPLUG_HOST_ID>",
        "SPARKPLUG_MQTT_PORT": "<SPARKPLUG_MQTT_PORT>",
        "SPARKPLUG_MQTT_USERNAME": "<SPARKPLUG_MQTT_USERNAME>",
        "SPARKPLUG_MQTT_PASSWORD": "<SPARKPLUG_MQTT_PASSWORD>",
        "SPARKPLUG_MQTT_USE_TLS": "<SPARKPLUG_MQTT_USE_TLS>",
        "SPARKPLUG_GROUP_ID": "<SPARKPLUG_GROUP_ID>"
      }
    }
  }
}

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

Name	Description
`SPARKPLUG_MQTT_HOST` Required	MQTT broker hostname or IP.
`SPARKPLUG_HOST_ID` Required	This connector's Sparkplug Host Application ID (used in the spBv1.0/STATE/{id} topic).
`SPARKPLUG_MQTT_PORT` Optional	MQTT broker port, default 1883
`SPARKPLUG_MQTT_USERNAME` Optional	Broker username, if required
`SPARKPLUG_MQTT_PASSWORD` Optional, secret	Broker password, if required
`SPARKPLUG_MQTT_USE_TLS` Optional	true/false, default false
`SPARKPLUG_GROUP_ID` Optional	Restrict discovery/watching to a single Sparkplug Group ID; omit to subscribe to every group

Details

Package	`[email protected]` (PYPI, stdio)
First published	4 Aug 2026
Last updated	4 Aug 2026
Registry name	`io.github.nagarjunr/sparkplug-b`

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Local install

Installed and run on your own machine, so there is no public endpoint to check.

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