# RPO, free: Business verification API

> Access to the data is free of charge and does not require registration.

RPO's business verification API on its Free plan. It costs $0.00 per 1,000 companies. It returns 4 of the 11 key fields we check: Registered name, Entity number, Formation date, Principal address.
You get as many calls as you like.
Half of the 524 plans we rank by price cost $5.14 per 1,000 companies or less. This plan and 37 others tie for the lowest price per 1,000 companies of the 524 plans.
[Didit](https://datacircle.dev/business-verification-apis/didit/top-up-from-50/llms.txt), [CompanyData.com](https://datacircle.dev/business-verification-apis/companydata-com/249-monthly/llms.txt) and [OpenSOSData](https://datacircle.dev/business-verification-apis/opensosdata/500-pack-enterprise-post-v1-lookup/llms.txt) are the best business verification API providers in our benchmark.

- This page: https://datacircle.dev/business-verification-apis/rpo/free
- [Best business verification API in 2026: pricing compared](https://datacircle.dev/best-business-verification-api.txt)
- Get it: https://slovak.statistics.sk/wps/portal?urile=wcm%3Apath%3A%2Fobsah-en%2Fstatic-content%2Fdatabazy%2F15-rpo-register-pravnickych-osob%2Frest+api+pre+rpo
- Request: `GET https://api.statistics.sk/rpo/v1/search`
- API key: not needed
- Its API docs: https://rpo.minv.sk/rpo-api-doc.html
- Sold by: RPO (https://rpo.minv.sk)
- Checked: 2026-10-31

## In the answer

- Completeness: 36%
- Registered name: ✓
- Entity number: ✓
- Formation date: ✓
- 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: $0.00

## In their words

- Their pitch: Access to the data is free of charge and does not require registration.

## Data

- Freshness: 1 day
- Keep data: no limit
- Use data: uplatňuje na použitie sprístupnených údajov z RPO [...] medzinárodnú verejnú licenciu Creative Commons Attribution License (cc-by) 4.0

## Plan

- Pay: $0
- Enough for: no limit

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: at least one of fullName, identifier, legalForm, legalStatus, addressMunicipality, addressStreet, establishmentAfter, establishmentBefore, terminationAfter, terminationBefore, onlyActive, dbModificationDateAfter, dbModificationDateBefore, mainActivity, esa2010, sourceRegister, stakeholderType, stakeholderPersonGivenName, stakeholderPersonFamilyName, stakeholderCompanyName, statutoryBodyType, statutoryBodyGivenName, statutoryBodyFamilyName, statutoryBodyCompanyName, orgUnitsIdentifier, orgUnitsFullName, orgUnitsStakeholderPersonGivenName, orgUnitsStakeholderPersonFamilyName, orgUnitsStakeholderCompanyName
- Method: GET
- Path: /search

## About the plan

- Plan: Free
- Who can get it: anyone

## The 11 fields the plan's answer can hold

RPO record ID, entity number, registered name, registered address, formation date, termination date, source register, registration office, registration number in the source register, last modified date, license

## RPO's plans (1)

- [RPO, free](https://datacircle.dev/business-verification-apis/rpo/free/llms.txt): $0.00 per 1,000, 36% complete, 1 day

## RPO's calls (1)

- `GET /search`: [RPO, free](https://datacircle.dev/business-verification-apis/rpo/free/llms.txt)

## RPO's APIs (1)

- [RPO: business verification API pricing, 1 plan](https://datacircle.dev/business-verification-apis/rpo/free/llms.txt)

## RPO: business verification API alternatives

- [OpenSOSData, free, POST /v1/lookup](https://datacircle.dev/business-verification-apis/opensosdata/free-post-v1-lookup/llms.txt): $0.00 per 1,000, 100% complete, live
- [The KYB, free, Plus activation: 2 free credits, POST /api/search](https://datacircle.dev/business-verification-apis/the-kyb/free-plus-activation-2-free-credits-post-api-search/llms.txt): $0.00 per 1,000, 73% complete, live
- [Strale, free trial credits, POST /v1/do, Belgian Company Data](https://datacircle.dev/business-verification-apis/strale/free-trial-credits-post-v1-do-belgian-company-data/llms.txt): $0.00 per 1,000, 64% complete, live
- [Scavio, free](https://datacircle.dev/business-verification-apis/scavio/free/llms.txt): $0.00 per 1,000, 45% 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 2026-10-31.

- https://rpo.minv.sk/new/
- https://rpo.minv.sk/rpo-api-doc.html
- https://slovak.statistics.sk/wps/portal?urile=wcm%3Apath%3A%2Fobsah-en%2Fstatic-content%2Fdatabazy%2F15-rpo-register-pravnickych-osob%2Frest+api+pre+rpo
- https://susrrpo.docs.apiary.io/