OPC UA Modeler vs Wasm MCP

In-depth architectural comparison of the OPC UA Modeler and Wasm MCP 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

W

Choose Wasm MCP 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 Wasm MCP Details

Feature & Specification Comparison

Specification	OPC UA Modeler Developer Tools	W Wasm MCP Developer Tools
Summary	OPC UA companion spec types, namespace dependencies, and engineering units for AI agents	Read-only MCP server for the WebAssembly spec: instructions, types, sections, search, proposals.
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": {
    "wasm-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "wasm-mcp"
      ]
    }
  }
}

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