OPC UA Modeler vs Valet

In-depth architectural comparison of the OPC UA Modeler and Valet MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

Which MCP Server Should You Choose?

Choose OPC UA Modeler when:

• You need dedicated capabilities in the Developer Tools domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).

Explore OPC UA Modeler Details

Choose Valet when:

• You need dedicated capabilities in the Developer Tools domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Freemium).

Explore Valet Details

Feature & Specification Comparison

Specification	OPC UA Modeler Developer Tools	Valet Developer Tools
Summary	OPC UA companion spec types, namespace dependencies, and engineering units for AI agents	Get share links, publish and manage websites, artifacts and agents. No account needed.
Category & Scope	Developer Tools	Developer Tools
Quality signal

Tools & Capabilities Breakdown

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

{
  "mcpServers": {
    "opc-ua-modeler": {
      "command": "npx",
      "args": [
        "-y",
        "node-opcua-modeler-mcp-server"
      ]
    }
  }
}

{
  "mcpServers": {
    "valet": {
      "command": "npx",
      "args": [
        "-y",
        "skills"
      ]
    }
  }
}

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