# Transparent Data, contact us, Get your API, POST /{key}/add, TD - CEIDG JSON: Company enrichment API

> Thanks to the API CEIDG you will obtain complete up-to-date information about each sole proprietorship registered by the Polish Central Registration and Information on Business.

Transparent Data's company enrichment API on its Get your API plan. It returns 3 of the 13 key fields we check: Type and status, Headquarters, Phones.
We haven't run Transparent Data through [our company enrichment API benchmark](https://datacircle.dev/best-company-enrichment-api.txt) yet.
Transparent Data gives this plan's price on request. We rank 1,542 plans for company enrichment APIs by price. Half the plans cost $7.96 per 1,000 companies or less.
[Extruct's $49 monthly plan](https://datacircle.dev/company-enrichment-apis/extruct/49-monthly/llms.txt) is the cheapest paid plan per 1,000 companies. Extruct's company enrichment API costs nothing beyond the plan price.
[CNPJ API's R$99 monthly plan (/bulk-cnpj)](https://datacircle.dev/company-enrichment-apis/cnpj-api/r-99-monthly-pro-post-bulk-cnpj/llms.txt) covers any number of companies in Brazil only. CNPJ API's R$99 monthly plan costs less up front than Extruct's $49 monthly plan.
[GLEIF](https://datacircle.dev/company-enrichment-apis/gleif/free/llms.txt), [SEC EDGAR](https://datacircle.dev/company-enrichment-apis/sec-edgar/free/llms.txt) and [GetProspect](https://datacircle.dev/company-enrichment-apis/getprospect/49-monthly-starter-post-v2-companies-enrich/llms.txt) are the best company enrichment API providers in the Datacircle benchmark for companies in any country.

- This page: https://datacircle.dev/company-enrichment-apis/transparent-data/contact-us-get-your-api-post-key-add-td-ceidg-json
- [Company enrichment API: 130+ providers compared](https://datacircle.dev/best-company-enrichment-api.txt)
- Get it: https://transparentdata.pl/en/api-company-information-poland?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- Request: `POST https://api.transparentdata.pl/{key}/add`, TD - CEIDG JSON
- API key: with the plan, on https://transparentdata.pl/en/api-company-information-poland?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- Its API docs: https://apidoc.transparentdata.pl/dataintegrator.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- Sold by: Transparent Data (https://transparentdata.pl?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing)
- Checked: 2026-11-04

## In the answer

- Completeness: 23%
- Type and status: ✓
- Headquarters: ✓
- Phones: ✓

## Price

- Billing: contact

## Aggregators

- Aggregators: none

## In their words

- Their pitch: Thanks to the API CEIDG you will obtain complete up-to-date information about each sole proprietorship registered by the Polish Central Registration and Information on Business.

## Data

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

## Speed

- Answer: by polling

## The call

- You send: source "ceidg", method "data", params.nip. Optional: params.timeout
- 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 31 fields the plan's answer can hold

owner name, company name, NIP, REGON number, status, business start date, suspension start date, suspension end date, closure date, deletion date, deletion legal basis, cancellation, community of property, PKD version, main PKD code, main PKD description, owner nationality, electronic delivery address, phone, fax, website URL, email, owner death date, succession manager, registered address, correspondence address, civil partnership, permissions, business bans, authorized agents, additional business addresses

## Transparent Data's plans (1)

- [Transparent Data, contact us, Get your API, 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): 23% complete, live

## Transparent Data's calls for this API (5)

- `POST /{key}/add`, TD - CEIDG JSON: [Transparent Data, contact us, Get your API, 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)
- `POST /{key}/add`, TD - KRS CEIDG REGON JSON: [Transparent Data, contact us, Get your API, 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)
- `POST /{key}/add`, TD - Pełny odpis KRS JSON 2.0: [Transparent Data, contact us, Get your API, 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)
- `POST /{key}/add`, TD - Raport Prześwietl JSON: [Transparent Data, contact us, Get your API, 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)
- `POST /{key}/add`, TD - REGON JSON: [Transparent Data, contact us, Get your API, 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'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 alternatives

- [SerpKite, contact us](https://datacircle.dev/company-enrichment-apis/serpkite/contact-us/llms.txt): 23% complete, live
- [ReefAPI, contact us, Custom, POST /google-maps/v1/place/by-id](https://datacircle.dev/company-enrichment-apis/reefapi/contact-us-custom-post-google-maps-v1-place-by-id/llms.txt): 23% complete, live
- [PrismCrawl, contact us](https://datacircle.dev/company-enrichment-apis/prismcrawl/contact-us/llms.txt): 23% complete, live
- [ValueSERP, contact us, Enterprise, GET /search, Google Map Place Details](https://datacircle.dev/company-enrichment-apis/valueserp/contact-us-enterprise-get-search-google-map-place-details/llms.txt): 23% complete, live

## 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=company-enrichment-api-pricing
- https://transparentdata.pl/en?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- https://transparentdata.pl/en/api-company-information-poland?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- https://transparentdata.pl/en/api-company-information-poland/ceidg?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing