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nipregon-mcp

by AMR-DEV-PS

NIPRegon MCP Server

NIPRegon MCP Server

Look up Polish companies from any AI assistant: registry data (KRS, REGON, CEIDG), VAT white list checks before payments, and financial statements of 4.4M Polish businesses.

Backed by NIPRegon.pl: data sourced exclusively from official public registers (KRS, REGON, CEIDG, the Ministry of Finance VAT white list and financial statements filed with the National Court Register).

License: MIT Website MCP Registry

Install MCP Server Install in VS Code

One endpoint, zero install:

https://api.nipregon.pl/mcp

Generic config that works in most MCP clients:

{
  "mcpServers": {
    "nipregon": {
      "type": "http",
      "url": "https://api.nipregon.pl/mcp"
    }
  }
}
claude mcp add --transport http nipregon https://api.nipregon.pl/mcp

Use the install button above, or add to ~/.cursor/mcp.json:

{
  "mcpServers": {
    "nipregon": { "url": "https://api.nipregon.pl/mcp" }
  }
}

Use the install button above, or add to mcp.json:

{
  "servers": {
    "nipregon": { "type": "http", "url": "https://api.nipregon.pl/mcp" }
  }
}

Settings → Connectors → Add custom connector → paste https://api.nipregon.pl/mcp.

Or, for any client without native streamable HTTP support:

{
  "mcpServers": {
    "nipregon": {
      "command": "npx",
      "args": ["mcp-remote", "https://api.nipregon.pl/mcp"]
    }
  }
}

Transport: streamable HTTP (JSON-RPC 2.0). Free tier: 100 tool calls/day/IP.

Related MCP server: Rejestr.io MCP Server

Try asking your assistant

  • "Check the company with NIP 7791906082 before I sign this contract."

  • "Find the company Eurocash and show its revenue for the last 5 years."

  • "Is the bank account on this invoice really on the VAT white list of the supplier?"

Tools

  • search_company — fuzzy search of Polish companies by name. Returns NIP, KRS, city, status and a profile URL. Inputs: query (string, min 3 chars), limit (1-10, default 5). Read-only.

  • get_company — full registry data of a Polish company by NIP: address, legal form, status, KRS, REGON, PKD activity codes, board members, VAT status. Inputs: nip (string, 10 digits). Read-only.

  • get_financials — yearly financial statements filed with the National Court Register: revenue, net profit, total assets, equity, liabilities. Inputs: nip. Read-only.

  • check_vat_whitelist — the company's VAT status in the Ministry of Finance taxpayer register (white list) and, optionally, whether a bank account number is on the company's white list. In Poland, paying more than PLN 15k to an account outside the white list has tax consequences. Inputs: nip, optional account (26 digits). Read-only.

Example response (shortened):

{
  "nip": "7822463563",
  "statements": [
    { "year": 2024, "revenue": 24436276969.00, "net_profit": 184561157.00 },
    { "year": 2023, "revenue": 21382959713.00, "net_profit": 176885896.00 }
  ],
  "source": "Sprawozdania finansowe KRS (RDF)"
}

Local stdio bridge (single file, zero dependencies)

For clients that only support stdio. Requires Node 18+. Download nipregon-mcp.mjs:

{
  "mcpServers": {
    "nipregon": {
      "command": "node",
      "args": ["/path/to/nipregon-mcp.mjs"],
      "env": { "NIPREGON_API_KEY": "(optional, for higher limits)" }
    }
  }
}

REST API

The same data over plain REST — see the API docs (Polish). Self-service API keys with Free/Start/Pro/Scale plans, an interactive playground and Stripe billing.

Troubleshooting

  • Client doesn't support remote MCP servers — use the mcp-remote bridge (see Claude Desktop above) or the local stdio file.

  • HTTP 429 / limit message — the free daily limit (100 tool calls/IP) was reached; try tomorrow or get an API key at nipregon.pl/api.

  • Company not foundget_company and get_financials cover companies registered in the National Court Register (KRS); financial data covers companies that filed statements electronically.

Data and privacy

The server is read-only and returns only data from official public registers. Sole-trader (JDG) records constitute personal data under GDPR: it is prohibited to use this server for creditworthiness scoring, automated assessment of natural persons or direct marketing towards sole traders. Queries are not logged beyond anonymous daily rate-limit counters. Details: terms of service (Polish).


NIPRegon MCP Server

🇵🇱 NIPRegon MCP Server (dokumentacja po polsku)

Sprawdzaj polskie firmy z poziomu dowolnego asystenta AI: dane rejestrowe (KRS, REGON, CEIDG), biała lista VAT przed przelewem i sprawozdania finansowe 4,4 mln polskich podmiotów.

Zasilane przez NIPRegon.pl: dane wyłącznie z oficjalnych rejestrów publicznych (KRS, REGON, CEIDG, wykaz podatników VAT Ministerstwa Finansów oraz sprawozdania finansowe złożone do KRS).

Serwer zdalny (zalecany)

Jeden endpoint, zero instalacji:

https://api.nipregon.pl/mcp

Uniwersalna konfiguracja dla większości klientów MCP:

{
  "mcpServers": {
    "nipregon": {
      "type": "http",
      "url": "https://api.nipregon.pl/mcp"
    }
  }
}

Claude Code:

claude mcp add --transport http nipregon https://api.nipregon.pl/mcp

Claude Desktop / claude.ai: Ustawienia → Konektory → Dodaj własny konektor → wklej https://api.nipregon.pl/mcp.

Transport: streamable HTTP (JSON-RPC 2.0). Darmowy limit: 100 wywołań narzędzi dziennie na adres IP. Wyższe limity: nipregon.pl/api.

Zapytaj swojego asystenta

  • „Sprawdź firmę o NIP 7791906082, zanim podpiszę umowę."

  • „Znajdź spółkę Eurocash i pokaż jej przychody z ostatnich 5 lat."

  • „Czy rachunek z tej faktury jest na białej liście dostawcy?"

Narzędzia

  • search_company — wyszukiwanie spółek po nazwie (fuzzy). Zwraca NIP, KRS, miasto, status i link do profilu.

  • get_company — pełne dane rejestrowe spółki po NIP: adres, forma prawna, status, KRS, REGON, kody PKD, zarząd, status VAT.

  • get_financials — roczne sprawozdania finansowe z KRS: przychody, zysk netto, aktywa, kapitał własny, zobowiązania.

  • check_vat_whitelist — status VAT w wykazie podatników (biała lista KAS) i opcjonalnie weryfikacja, czy numer rachunku figuruje na białej liście podmiotu (istotne przed przelewem powyżej 15 tys. zł).

Dane i prywatność

Serwer jest tylko do odczytu i zwraca wyłącznie dane z oficjalnych rejestrów publicznych. Dane JDG stanowią dane osobowe (RODO): zakaz wykorzystania do scoringu kredytowego, automatycznej oceny osób fizycznych i marketingu bezpośredniego wobec JDG. Zapytania nie są logowane poza anonimowymi licznikami limitów dziennych. Szczegóły: regulamin.

License

MIT (this client and manifest). The NIPRegon.pl service itself is a separate, proprietary product of WEBY SOLUTION SP. Z O.O.

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