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mcp/harbor
Cursor

Polish Open Data (unofficial) for Cursor

io.github.jaceksmi/polishopendata

Polish registers: KRS, VAT, parcels, prices, GUS statistics, legal acts, REGON/CEIDG.

client:Cursor transport:stdio runtime:nuget

Install Polish Open Data (unofficial) in Cursor

~/.cursor/mcp.json · windows: %USERPROFILE%\.cursor\mcp.json

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "polishopendata": {
      "type": "stdio",
      "command": "dnx",
      "args": [
        "PolishOpenData.Mcp",
        "--yes"
      ],
      "env": {
        "POLISHOPENDATA_OFFLINE_DIR": "<POLISHOPENDATA_OFFLINE_DIR>",
        "POLISHOPENDATA_REGON_KEY": "<POLISHOPENDATA_REGON_KEY>",
        "POLISHOPENDATA_CEIDG_TOKEN": "<POLISHOPENDATA_CEIDG_TOKEN>",
        "POLISHOPENDATA_BDL_CLIENT_ID": "<POLISHOPENDATA_BDL_CLIENT_ID>"
      }
    }
  }
}

Use .cursor/mcp.json in a project root instead to scope it to that project. Cursor merges both. Cursor docs

Polish Open Data (unofficial) in other clients

Polish Open Data (unofficial) MCP server