# Transparent Data, contact us: Business verification API

> Źródło umożliwia pobranie danych o podmiotach. Dane źródłowe pochodzą z rejestrów KRS, CEIDG oraz REGON.

Transparent Data's business verification API on its Get your API plan. It returns 5 of the 11 key fields we check: Registered name, Entity number, Tax ID, Status, Principal address.
We haven't run Transparent Data through [our business verification API benchmark](https://datacircle.dev/best-business-verification-api.txt) yet.
Transparent Data gives this plan's price on request. We rank 793 plans for business verification APIs by price. Half the plans cost $7.895 per 1,000 companies or less.
[EuroValidate's €149 monthly plan](https://datacircle.dev/business-verification-apis/eurovalidate/149-monthly-scale-post-v1-validate/llms.txt) is the cheapest paid plan per 1,000 companies: $0.017. EuroValidate's plan covers companies in 31 countries only.
[Scoris's €19 pack](https://datacircle.dev/business-verification-apis/scoris/19-pack/llms.txt) covers any number of companies in 8 countries only. Scoris's €19 pack costs less up front than EuroValidate's €149 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/transparent-data/contact-us
- [Business verification API: 11 providers compared](https://datacircle.dev/best-business-verification-api.txt)
- Get it: https://transparentdata.pl/en/api-company-information-poland?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Request: `POST https://api.transparentdata.pl/{key}/add`
- API key: with the plan, on https://transparentdata.pl/en/api-company-information-poland?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Its API docs: https://apidoc.transparentdata.pl/dataintegrator.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Sold by: Transparent Data (https://transparentdata.pl?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing)
- Checked: 2026-11-04

## In the answer

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

## Price

- Billing: contact

## Aggregators

- Aggregators: none

## In their words

- Their pitch: Źródło umożliwia pobranie danych o podmiotach. Dane źródłowe pochodzą z rejestrów KRS, CEIDG oraz REGON.

## Data

- Countries: Poland
- Keep data: no API terms
- Use data: no API terms

## Speed

- Answer: by polling

## The call

- You send: source "aml_company", method "get", params.query. Optional: params.return_data_limit
- Method: POST
- Path: /{key}/add

## About the plan

- Plan: Get your API
- Who can get it: anyone who sends its contact form: an offer and test access follow

## The 7 fields the plan's answer can hold

company name, NIP, KRS number, REGON number, registered address, status, source register

## Transparent Data's plans (1)

- [Transparent Data, contact us](https://datacircle.dev/business-verification-apis/transparent-data/contact-us/llms.txt): 45% complete

## Transparent Data's calls for this API (1)

- `POST /{key}/add`: [Transparent Data, contact us](https://datacircle.dev/business-verification-apis/transparent-data/contact-us/llms.txt)

## Transparent Data's APIs (3)

- [Transparent Data: business verification API pricing, 1 plan](https://datacircle.dev/business-verification-apis/transparent-data/contact-us/llms.txt)
- [Transparent Data: company hierarchy API pricing, 1 plan](https://datacircle.dev/company-hierarchy-apis/transparent-data/contact-us/llms.txt)
- [Transparent Data: company enrichment API pricing, 1 plan, POST /{key}/add, TD - CEIDG JSON](https://datacircle.dev/company-enrichment-apis/transparent-data/contact-us-get-your-api-post-key-add-td-ceidg-json/llms.txt)
- [Transparent Data: company enrichment API pricing, 1 plan, POST /{key}/add, TD - KRS CEIDG REGON JSON](https://datacircle.dev/company-enrichment-apis/transparent-data/contact-us-get-your-api-post-key-add-td-krs-ceidg-regon-json/llms.txt)
- [Transparent Data: company enrichment API pricing, 1 plan, POST /{key}/add, TD - Pełny odpis KRS JSON 2.0](https://datacircle.dev/company-enrichment-apis/transparent-data/contact-us-get-your-api-post-key-add-td-pe-ny-odpis-krs-json-2-0/llms.txt)
- [Transparent Data: company enrichment API pricing, 1 plan, POST /{key}/add, TD - Raport Prześwietl JSON](https://datacircle.dev/company-enrichment-apis/transparent-data/contact-us-get-your-api-post-key-add-td-raport-przeswietl-json/llms.txt)
- [Transparent Data: company enrichment API pricing, 1 plan, POST /{key}/add, TD - REGON JSON](https://datacircle.dev/company-enrichment-apis/transparent-data/contact-us-get-your-api-post-key-add-td-regon-json/llms.txt)

## Transparent Data: business verification API alternatives

- [GlobalEntity API, contact us](https://datacircle.dev/business-verification-apis/globalentity-api/contact-us/llms.txt): 45% complete
- [Didit, contact us](https://datacircle.dev/business-verification-apis/didit/contact-us/llms.txt): 45% complete
- [Trulioo, contact us, Contact sales, POST /v3/business/search](https://datacircle.dev/business-verification-apis/trulioo/contact-us-contact-sales-post-v3-business-search/llms.txt): 45% complete
- [Worldbox, contact us](https://datacircle.dev/business-verification-apis/worldbox/contact-us/llms.txt): 45% complete

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-04.

- https://apidoc.transparentdata.pl/dataintegrator.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://transparentdata.pl/en?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://transparentdata.pl/en/api-company-information-poland?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://transparentdata.pl/en/api-company-information-poland/krs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing