# PolishOpenData

> PolishOpenData — jaceksmi-polishopendata. Use this tool when you need to validate or retrieve data from Polish public registers, such as KRS, Biała Lista, or NIP/REGON/KRS/NRB/KW. It provides typed .NET clients and an MCP server for seamless integration, solving problems related to data verification and access. Ideal for use cases involving Polish business data validation, whitelist checks, or register queries, with inputs including business identifiers and outputs featuring validated data or register information.

Canonical page: https://skillsregistry.net/skills/jaceksmi-polishopendata  
JSON: https://api.skillsregistry.net/v1/skills/jaceksmi-polishopendata

## Description

Typed .NET clients and an MCP server for Polish public registers: KRS, Biała Lista (VAT whitelist), NIP/REGON/KRS/NRB/KW validation

## Trust

- **Trust score (0–1):** 1.00
- **Verification tier:** verified
- **Last scanned:** 2026-09-28

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** container
- **Runtime environment:** vm
- **License:** MIT
- **Updated:** 2026-09-28

## Source

- **Source listing:** [GitHub](https://github.com/JacekSmi/PolishOpenData)

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "jaceksmi-polishopendata"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/jaceksmi-polishopendata` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/jaceksmi-polishopendata/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt