OPC UA MCP Server vs Plctap

In-depth architectural comparison of the OPC UA MCP Server and Plctap 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 MCP Server when:

• You need dedicated capabilities in the Industrial & IoT domain.
• You prefer remote streaming HTTP/SSE transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).

Explore OPC UA MCP Server Details

Choose Plctap when:

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

Explore Plctap Details

Feature & Specification Comparison

Specification	OPC UA MCP Server Industrial & IoT	Plctap Industrial & IoT
Summary	Read, write, browse, search, and subscribe to live data on an OPC-UA industrial automation server.	Agent-PLC MCP Server: connect, read and diagnose Modbus / FINS / MELSEC / Siemens S7 PLCs.
Category & Scope	Industrial & IoT	Industrial & IoT

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-mcp-server": {
      "url": "https://xyz.trycloudflare.com/mcp"
    }
  }
}

{
  "mcpServers": {
    "plctap": {
      "command": "uvx",
      "args": [
        "plctap"
      ]
    }
  }
}

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