Public Data Catalog vs OtwarteAPI

In-depth architectural comparison of the Public Data Catalog and OtwarteAPI 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 Public Data Catalog 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 Public Data Catalog Details

Choose OtwarteAPI 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 OtwarteAPI Details

Feature & Specification Comparison

Specification	Public Data Catalog Developer Tools	OtwarteAPI Developer Tools
Summary	Reviewed public-data search and execution with provenance and verifiable integrity receipts.	Search otwarteAPI.pl: a catalog of public Polish & EU government/data APIs, for AI agents. Keyless.
Category & Scope	Developer Tools	Developer Tools

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": {
    "public-data-catalog": {
      "command": "npx",
      "args": [
        "-y",
        "public-data-catalog"
      ]
    }
  }
}

{
  "mcpServers": {
    "otwarteapi": {
      "url": "https://otwarteapi.pl"
    }
  }
}

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