Sparkplug B

{
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "name": "io.github.nagarjunr/sparkplug-b",
  "description": "MCP server for Sparkplug B: node/device discovery, metrics, commands, host state over MQTT.",
  "title": "Sparkplug B",
  "repository": {
    "url": "https://github.com/nagarjunr/iot-mcp-servers",
    "source": "github",
    "subfolder": "sparkplug-b"
  },
  "version": "0.1.0",
  "packages": [
    {
      "registryType": "pypi",
      "registryBaseUrl": "https://pypi.org",
      "identifier": "sparkplug-b-mcp-server",
      "version": "0.1.0",
      "runtimeHint": "uvx",
      "transport": {
        "type": "stdio"
      },
      "environmentVariables": [
        {
          "description": "MQTT broker hostname or IP.",
          "isRequired": true,
          "name": "SPARKPLUG_MQTT_HOST"
        },
        {
          "description": "This connector's Sparkplug Host Application ID (used in the spBv1.0/STATE/{id} topic).",
          "isRequired": true,
          "name": "SPARKPLUG_HOST_ID"
        },
        {
          "description": "MQTT broker port, default 1883",
          "name": "SPARKPLUG_MQTT_PORT"
        },
        {
          "description": "Broker username, if required",
          "name": "SPARKPLUG_MQTT_USERNAME"
        },
        {
          "description": "Broker password, if required",
          "isSecret": true,
          "name": "SPARKPLUG_MQTT_PASSWORD"
        },
        {
          "description": "true/false, default false",
          "name": "SPARKPLUG_MQTT_USE_TLS"
        },
        {
          "description": "Restrict discovery/watching to a single Sparkplug Group ID; omit to subscribe to every group",
          "name": "SPARKPLUG_GROUP_ID"
        }
      ]
    }
  ]
}