OPC-UA MCP Server MCP Server

io.github.mwieczorkiewicz/opcua-mcp

Repository Registry

What is the OPC-UA MCP Server MCP server?

Read, write, browse, search, and subscribe to live data on an OPC-UA industrial automation server.

How to install OPC-UA MCP Server

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

OPCUA_ENDPOINT
required
OPC-UA server endpoint to connect to, e.g. opc.tcp://your-plc-host:4840
OPCUA_AUTH_MODE
Authentication mode against the OPC-UA server
OPCUA_USERNAME
Username, required if OPCUA_AUTH_MODE=username
OPCUA_PASSWORD
secret
Password, required if OPCUA_AUTH_MODE=username
OPCUA_SECURITY_POLICY
OPC-UA transport security policy, e.g. Basic256Sha256
OPCUA_SECURITY_MODE
OPC-UA transport security mode, e.g. SignAndEncrypt
SERVER_TRANSPORT
MCP transport: stdio (for local MCP clients) or http (for remote/hosted deployments)

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "opcua-mcp": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "ghcr.io/mwieczorkiewicz/opcua-mcp:main-29734c4"
      ],
      "env": {
        "OPCUA_ENDPOINT": "<YOUR_OPCUA_ENDPOINT>",
        "OPCUA_AUTH_MODE": "<YOUR_OPCUA_AUTH_MODE>",
        "OPCUA_USERNAME": "<YOUR_OPCUA_USERNAME>",
        "OPCUA_PASSWORD": "<YOUR_OPCUA_PASSWORD>",
        "OPCUA_SECURITY_POLICY": "<YOUR_OPCUA_SECURITY_POLICY>",
        "OPCUA_SECURITY_MODE": "<YOUR_OPCUA_SECURITY_MODE>",
        "SERVER_TRANSPORT": "<YOUR_SERVER_TRANSPORT>"
      }
    }
  }
}

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