# GUS REGON, free: Business verification API

> Metoda przeszukuje bazę regon w poszukiwaniu rekordów zgodnych z określonymi parametrami wyszukiwania. Rekordy wyświetlane są w postaci listy.

GUS REGON's Free plan for the business verification API costs $0.00 per 1,000 companies. We check each provider's docs for 11 fields. GUS REGON's docs list 5: Registered name, Entity number, Tax ID, Entity type, Principal address.
GUS REGON limits how many calls you get but gives no number.
We haven't run GUS REGON through [our business verification API benchmark](https://datacircle.dev/best-business-verification-api.txt) yet.
We rank 1,735 plans for business verification APIs by price. Half the plans cost $7.895 or less per 1,000 companies. This plan and 227 others tie for the lowest price per 1,000 companies of the 1,735 plans. [See the best free business verification API plan.](https://datacircle.dev/best-business-verification-api.txt)
[Scoris' €19 pack](https://datacircle.dev/business-verification-apis/scoris/19-pack/llms.txt) covers any number of companies in 8 countries only. Scoris' €19 pack costs less up front than SafeDeal's ₸50,000 (about $110) monthly plan.
[GovFiles](https://datacircle.dev/business-verification-apis/govfiles/top-up/llms.txt), [Didit](https://datacircle.dev/business-verification-apis/didit/top-up-from-50/llms.txt) and [CompanyData.com](https://datacircle.dev/business-verification-apis/companydata-com/249-monthly/llms.txt) are the best business verification API providers in the Datacircle benchmark for companies in any country.

- This page: https://datacircle.dev/business-verification-apis/gus-regon/free
- [Business verification API in 2026: the 8 best compared](https://datacircle.dev/best-business-verification-api.txt)
- Get it: https://api.stat.gov.pl/Home/RegonApi?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Request: `POST https://wyszukiwarkaregon.stat.gov.pl/wsBIR/UslugaBIRzewnPubl.svc`
- API key: with the plan, on https://api.stat.gov.pl/Home/RegonApi?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Its API docs: https://api.stat.gov.pl/Home/RegonApi?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Sold by: GUS REGON (https://api.stat.gov.pl?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing)
- Checked: 2026-11-08

## In the answer

- Completeness: 45%
- Registered name: ✓
- Entity number: ✓
- Tax ID: ✓
- Entity type: ✓
- Principal address: ✓

## Price

- $ per 1,000 companies: $0.00
- Per: call
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000 calls that find nothing: $0.00

## In their words

- Their pitch: Metoda przeszukuje bazę regon w poszukiwaniu rekordów zgodnych z określonymi parametrami wyszukiwania. Rekordy wyświetlane są w postaci listy.

## Data

- Freshness: stored
- Countries: Poland
- Keep data: no limit
- Use data: Niedozwolone są działania mogące doprowadzić do przeciążenia systemu bądź jego nieprawidłowego działania. W szczególności niedozwolone są następujące działania: Wysyłanie do usługi bardzo dużej liczby żądań o dane w krótkim czasie, Zakładanie wielu kont przez ten sam podmiot, Przekraczanie określonych w instrukcji limitów zapytań. [...] Niedozwolone jest automatyczne wyszukiwanie kolejnych identyfikatorów (np. 000000000, 000000001, 000000003, 000000004 itd..) celem pobrania wycinka bądź całości rejestru, w bardzo krótkim czasie.

## Plan

- Pay: $0

## Rate limit

- Per second: 1.67 (6,000 an hour)
- Batch: 20

## Speed

- Answer: in the call

## The call

- You send: Content-Type header "application/soap+xml", one of pParametryWyszukiwania.Nip, pParametryWyszukiwania.Krs, pParametryWyszukiwania.Regon, pParametryWyszukiwania.Nipy, pParametryWyszukiwania.Krsy, pParametryWyszukiwania.Regony9zn or pParametryWyszukiwania.Regony14zn
- Method: POST
- Path: /wsBIR/UslugaBIRzewnPubl.svc

## About the plan

- Plan: Free
- Who can get it: commercial entities, and non-commercial ones asking for the public data, that request a user key by email to regon_bir@stat.gov.pl

## The 16 fields the plan's answer can hold

REGON, NIP, NIP status, registered name, voivodeship, county, municipality, locality, ZIP code, street, building number, apartment number, entity type, silo ID, activity end date, post office locality

## GUS REGON's plans (1)

- [GUS REGON, free](https://datacircle.dev/business-verification-apis/gus-regon/free/llms.txt): $0.00 per 1,000, 45% complete, stored

## GUS REGON's calls (1)

- `POST /wsBIR/UslugaBIRzewnPubl.svc`: [GUS REGON, free](https://datacircle.dev/business-verification-apis/gus-regon/free/llms.txt)

## GUS REGON's APIs (2)

- [GUS REGON: business verification API pricing, 1 plan](https://datacircle.dev/business-verification-apis/gus-regon/free/llms.txt)
- [GUS REGON: company enrichment API pricing, 1 plan](https://datacircle.dev/company-enrichment-apis/gus-regon/free/llms.txt)

## GUS REGON: business verification API alternatives

- [Latinfo, free, GET /co/rues/registry/search](https://datacircle.dev/business-verification-apis/latinfo/free-get-co-rues-registry-search/llms.txt): $0.00 per 1,000, 27% complete, stored
- [Milquery, free](https://datacircle.dev/business-verification-apis/milquery/free/llms.txt): $0.00 per 1,000, 27% complete, stored
- [CZ Agents, free](https://datacircle.dev/business-verification-apis/cz-agents/free/llms.txt): $0.00 per 1,000, 18% complete, stored
- [data.texas.gov, free, With an app token](https://datacircle.dev/business-verification-apis/data-texas-gov/free-with-an-app-token/llms.txt): $0.00 per 1,000, 27% complete, stored
- [GLEIF, free](https://datacircle.dev/business-verification-apis/gleif/free/llms.txt): $0.00 per 1,000, 64% complete, stored

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-08.

- https://api.stat.gov.pl/Content/files/regon/GUS-Regon-UslugaBIRver1.2-dokumentacjaVer1.4.zip?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://api.stat.gov.pl/Home/RegonApi?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing