Nipregon

pl.nipregonPublished by nipregon.plOfficial publisherv1.0.0Updated Oct 24, 2026

Polish company registry: 4.4M firms, KRS/REGON data, VAT white list checks, financial statements

VerifiedStreamable HTTPWeb executableFinanceBusiness & Commerce

Overview

AI-generated overview

Remote MCP server for looking up Polish companies: registry data, VAT white list checks and KRS financial statements for 4.4M businesses.

What you can do
  • Search Polish companies by name with fuzzy matching, returning NIP, KRS, city, status and a profile link
  • Fetch full registry details for a company by NIP: address, legal form, status, KRS, REGON, PKD codes, board members and VAT status
  • Retrieve yearly financial statements filed with the National Court Register: revenue, net profit, total assets, equity and liabilities
  • Check a company's VAT status in the Ministry of Finance white list and optionally verify whether a bank account number is listed
When to use it
Useful when an assistant needs to verify a Polish business partner before signing a contract or making a payment, look up registry identifiers, or review a company's reported revenue and profit over several years.
Requirements
A remote streamable HTTP endpoint; no install needed. Clients without native remote MCP support can use an npx mcp-remote bridge or a local Node 18+ stdio script. An optional API key (NIPREGON_API_KEY) raises the free limit of 100 tool calls per day per IP.
Before you install
All tools are read-only and return data from official public registers. Sole-trader records are personal data under GDPR, and the provider forbids using the server for creditworthiness scoring, automated assessment of natural persons or direct marketing to sole traders. Queries go to a third-party service; only anonymous daily rate-limit counters are kept.

Installation

In SourceWeft

  1. Open Nipregon in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/pl.nipregon%2Fnipregon/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

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

README

[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]

Remote server (recommended)

One endpoint, zero install:

https://api.nipregon.pl/mcp

Generic config that works in most MCP clients:

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

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

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

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

json
{  "servers": {    "nipregon": { "type": "http", "url": "https://api.nipregon.pl/mcp" }  }}
Claude Desktop / claude.ai

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

Or, for any client without native streamable HTTP support:

json
{  "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.

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):

json
{  "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:

json
{  "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 found — get_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:

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

Claude Code:

bash
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.

Source: README.md at commit 57d6cce

Tools

0
SourceWeft has not read this server's tools yet.

Version history

1
  1. v1.0.0LatestSep 16, 2026

Score

85% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts