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Nipregon

by AMR-DEV-PSversion 1.0.0i★ –iRuns in the cloud
Registry namepl.nipregon/nipregon

Install

Overview

Description from the maker (original English)

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

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

  • Connection: Runs in the cloud
  • Transport: Streamable HTTP
  • Category: Accounting, finance & tax

Install

Pick the AI app you use, then copy the settings.

Before you install

  • Basic checks: 1 of 1 passed
  • Runs on the maker’s server: what you ask it goes through their server.
  • The registry lists no key to fill in.

You need

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

  1. Open Settings → Connectors
  2. Press Add custom connector
  3. Paste the address below and press Add
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Add2https://…3
https://api.nipregon.pl/mcp

Run this in your terminal

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

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

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

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

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

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

  1. Open ChatGPT on the web → Settings → Connectors (Apps)
  2. Press Create or Add (some plans need Developer mode under Advanced first)
  3. Paste the address below, give it a name and save
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Create2https://…3
https://api.nipregon.pl/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified against the domain nipregon.pl (the registry checks domain ownership)

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • … Not checked yet

    Endpoint responds

    Not checked yet; we check endpoints in rotation

  • … Not checked yet

    Sign-in with OAuth

    Not checked yet; we check endpoints in rotation

  • … Not checked yet

    No hidden instructions in tool descriptions

    Not checked yet; we read the tool list when we check the endpoint

Compared with others in Accounting, finance & taxi

  • More stars than 0% of the other 1734 servers in this category
  • Published to the registry more recently than 15% of the other 1734 servers in this category
  • Basic checks equal to or better than 100% of the other 1734 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Nipregon safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.0.0) reached the registry 5 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Finance Toolkit, SolidInvoice, Korea Tax Calculator

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

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500+ transparent financial methods calculated from raw statements, not third-party endpoints.

Computer or cloud★ 5,496MITUpdated today
Install

SolidInvoice

by SolidInvoice

Create and send invoices and quotes, manage clients, and track payments in SolidInvoice.

Runs in the cloud★ 981MITUpdated 8 days ago
Install

Korean tax calculation and tax-audit judgment MCP: 96 tools with statutory citations.

Runs on your computer★ 97MITUpdated yesterday
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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

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).

Remote server (recommended)

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 Code

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

Cursor

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

{

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

</details>

VS Code

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

{

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

</details>

Claude Desktop / claude.ai

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"] } } }

</details>

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):

{

"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 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 (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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