REGON (Polish business register) vs Directory

In-depth architectural comparison of the REGON (Polish business register) and Directory 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?

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Choose REGON (Polish business register) 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 REGON (Polish business register) Details

Choose Directory when:

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

Explore Directory Details

Feature & Specification Comparison

Specification	R REGON (Polish business register) Developer Tools	Directory Developer Tools
Summary	Look up Polish businesses in the GUS REGON register (BIR1) by NIP, REGON, or KRS.	Discover and query every business on ANOTS — search, ask, or find-and-ask over MCP.
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": {
    "regon-polish-business-register": {
      "command": "npx",
      "args": [
        "-y",
        "regon-polish-business-register"
      ]
    }
  }
}

{
  "mcpServers": {
    "directory": {
      "url": "http://localhost:6333/health"
    }
  }
}

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