Utility library for validation of PESEL, NIP, REGON, identity card etc. Aimed mostly at Polish enviroment. [Polish] Walidacja numerów pesel, nip, regon, dowodu osobistego.

GUS REGON Internet Database Client

BIR1 - GUS REGON client to official database of polish companies

Simple, ruby wrapper for Polish GUS REGON database BIR1 (Baza Internetowa Regon 1)

Python 3 API Client for Polish REGON database (Baza Internetowa Regon - BIR)

Simple Polish Validation rules for Laravel and Lumen framework

Check if a number is a valid REGON.

[DEPRECATED — use pii-toolkit] Reversible Polish PII anonymization for LLM workflows. Successor packages: pii-veil, pii-core, pii-presidio.

A library for validating PESEL, NIP and REGON numbers.

Elixir library for validate polish numbers: PESEL, NIP, REGON, IBAN (PL)

Laravel integration for slashlab/numerik — validation rules for PESEL, NIP, REGON, KRS, NRB, VAT-EU, IBAN, ID Card, and Passport

Library for validate polish numbers: PESEL, NIP, REGON, IBAN (PL)

Biblioteka .NET do pobierania danych firm po NIP, REGON lub KRS bez klucza API, zwracająca dane w formacie JSON

Elixir library for REGON number.

A library for accessing the Polish REGON database via the official API.

A .NET client library for the Polish REGON (GUS BIR1) SOAP API — query company data from the National Business Registry by NIP or KRS number.

🇵🇱 TypeScript wrapper for Polish company lookup by NIP — Biała Lista MF API. No API key required.

A collection of DevToys extensions for generating and validating Polish identification numbers, such as PESEL, NIP, and REGON.

Browser extension that speeds up searching informations about companies in Poland

Rails validators for polish numbers: PESEL, NIP, REGON, IBAN (PL)