Install OPC-UA MCP Server 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": {
"mwieczorkiewicz-opcua-mcp": {
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"ghcr.io/mwieczorkiewicz/opcua-mcp:main-29734c4"
],
"env": {
"OPCUA_ENDPOINT": "opc.tcp://localhost:4840",
"OPCUA_AUTH_MODE": "anonymous",
"OPCUA_USERNAME": "",
"OPCUA_PASSWORD": "YOUR_OPCUA_PASSWORD",
"OPCUA_SECURITY_POLICY": "None",
"OPCUA_SECURITY_MODE": "None",
"SERVER_TRANSPORT": "stdio"
}
}
}
}