# Fuentio, free, POST /v1/verifications: Business verification API

> A decision-ready check for onboarding, KYB or before paying: an outcome with reasons, checks, warning signals and a proof code you can show an auditor. 1 unit if not found.

Fuentio's Free plan for the business verification API costs $0.00 per 1,000 companies. We check each provider's docs for 11 fields. Fuentio's docs list 6: Registered name, Tax ID, Entity type, Status, Formation date, Principal address.
In [our business verification API benchmark](https://datacircle.dev/best-business-verification-api.txt), the best plan from Fuentio scores 61.6 out of 100.
This plan is free. We rank 719 plans for business verification APIs by price. Half the plans cost $10.00 or less per 1,000 companies. [211 business verification API plans on our price sheet are free.](https://datacircle.dev/best-business-verification-api.txt) [GovFiles](https://datacircle.dev/business-verification-apis/govfiles/free/llms.txt) has a free plan with 1,000 results. GovFiles is the best business verification API in our benchmark for companies in any country.
[Jsonpage's €129 monthly plan](https://datacircle.dev/business-verification-apis/jsonpage/129-monthly-pro-get-v2-validate/llms.txt) is the cheapest paid plan per 1,000 companies, for 33 countries only, with no charge per call. You get as many companies as Jsonpage's rate limit allows. [ApiZero's CNY 399 yearly plan](https://datacircle.dev/business-verification-apis/apizero/cny-399-yearly-diamond-membership-get-api-company-search/llms.txt) costs the least for 10,000 companies a month: about $4.97.
[eucompliance.tools' €20 monthly plan (/v1/vat)](https://datacircle.dev/business-verification-apis/eucompliance-tools/20-monthly-business-get-v1-vat/llms.txt) covers any number of companies, and costs less up front than Jsonpage's €129 monthly plan.
[GovFiles](https://datacircle.dev/business-verification-apis/govfiles/top-up/llms.txt), [CompanyData.com](https://datacircle.dev/business-verification-apis/companydata-com/249-monthly/llms.txt) and [Didit](https://datacircle.dev/business-verification-apis/didit/top-up-from-50/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/fuentio/free-post-v1-verifications
- [Business verification API in 2026: the 8 best compared](https://datacircle.dev/best-business-verification-api.txt)
- Get it: https://fuentio.com/pricing/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Request: `POST https://api.fuentio.com/v1/verifications`
- API key: with the plan, on https://fuentio.com/pricing/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Its API docs: https://fuentio.com/docs/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing#rest
- Sold by: Fuentio (https://fuentio.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing)
- Checked: 2026-11-10

## In the answer

- Completeness: 55%
- Registered name: ✓
- Tax ID: ✓
- Entity type: ✓
- Status: ✓
- Formation date: ✓
- Principal address: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: search_companies · lookup_company · get_company_history · resolve_company · explain_match · get_evidence · screen_company · check_insolvency · check_address · check_vat · review_report · check_supplier_list · what_changed · watch_company · get_graph

## Overage

- Units cap: hard

## Not found

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

## In their words

- Their pitch: A decision-ready check for onboarding, KYB or before paying: an outcome with reasons, checks, warning signals and a proof code you can show an auditor. 1 unit if not found.

## Data

- Countries: France, Spain, United Kingdom
- Keep data: no limit
- Use data: Your plan gives you the right to use the service and the answers it returns for your own business, within these terms. Please don't: use the site, the service or its data against the law, including personal data law, use them for fraud, or to infringe anyone's intellectual property, resell the data in bulk, or use it to build marketing or prospecting lists about people, try to break, overload or get around the protections or rate limits of the site or the service. [...] When you reuse or pass on company data from Fuentio, keep the source and its licence mention with it.

## Plan

- Pay: €0
- You get: 100 credits a month
- Enough for: 20 calls a month
- Expires: at each monthly reset

## Rate limit

- Per second: 2
- Batch: 1

## Speed

- Answer: in the call
- Median: 0.57 s

## The call

- You send: country, identifier. Optional: id_scheme, reference
- Method: POST
- Path: /v1/verifications

## About the plan

- Plan: Free
- Who can get it: anyone with an email address, one free key per person

## The 71 fields the plan's answer can hold

verification ID, proof code, reference, checked at, identifier scheme, identifier value, coverage status, coverage level, coverage jurisdictions, coverage note, changes in the last 12 months, latest change types, history since, closure signal, dissolution signal, extinction signal, insolvency signal, checks, outcome, reasons, summary, units charged, units remaining, company ID, schema version, country, jurisdiction, identifiers, name, Latin name, name script, name language, trade names, legal form code, legal form label, ELF code, legal form category, status, original status label, status as of date, incorporation date, registered address, street, postal code, locality, address country, activity scheme, activity code, activity label, NACE Rev 2 code, ISIC Rev 4 code, English activity label, employee count band, employee count year, VAT number computed, diffusion status, region code, company category, social and solidarity economy, mission-driven company, source, source URL, license, fetched at, last verified at, source updated at, record coverage level, request ID, served at, data SHA-256, snapshot ID

## Fuentio's plans (8)

- [Fuentio, free, POST /v1/verifications](https://datacircle.dev/business-verification-apis/fuentio/free-post-v1-verifications/llms.txt): $0.00 per 1,000, 55% complete
- [Fuentio, free, Trial](https://datacircle.dev/business-verification-apis/fuentio/free-trial/llms.txt): $0.00 per 1,000, 55% complete
- [Fuentio, €49 monthly, Starter, POST /v1/verifications](https://datacircle.dev/business-verification-apis/fuentio/49-monthly-starter-post-v1-verifications/llms.txt): $137.849 per 1,000, 55% complete
- [Fuentio, €149 monthly, Growth, POST /v1/verifications](https://datacircle.dev/business-verification-apis/fuentio/149-monthly-growth-post-v1-verifications/llms.txt): $83.835 per 1,000, 55% complete
- [Fuentio, €149 monthly, Founding Partner, POST /v1/verifications](https://datacircle.dev/business-verification-apis/fuentio/149-monthly-founding-partner-post-v1-verifications/llms.txt): $41.917 per 1,000, 55% complete
- [Fuentio, €499 monthly, Business, POST /v1/verifications](https://datacircle.dev/business-verification-apis/fuentio/499-monthly-business-post-v1-verifications/llms.txt): $56.153 per 1,000, 55% complete
- [Fuentio, €999 monthly, Compliance, POST /v1/verifications](https://datacircle.dev/business-verification-apis/fuentio/999-monthly-compliance-post-v1-verifications/llms.txt): $37.472 per 1,000, 55% complete
- [Fuentio, contact us, Enterprise, POST /v1/verifications](https://datacircle.dev/business-verification-apis/fuentio/contact-us-enterprise-post-v1-verifications/llms.txt): 55% complete

## Fuentio's calls for this API (2)

- `POST /v1/supplier-batches/{batch_id}/finalize`: [Fuentio, free, POST /v1/supplier-batches/{batch_id}/finalize](https://datacircle.dev/business-verification-apis/fuentio/free-post-v1-supplier-batches-batch-id-finalize/llms.txt)
- `POST /v1/verifications`: [Fuentio, free, POST /v1/verifications](https://datacircle.dev/business-verification-apis/fuentio/free-post-v1-verifications/llms.txt)

## Fuentio's APIs (4)

- [Fuentio Company hierarchy API pricing, 7 plans](https://datacircle.dev/company-hierarchy-apis/fuentio/free/llms.txt)
- [Fuentio Company discovery API pricing, 8 plans](https://datacircle.dev/company-discovery-apis/fuentio/free-trial/llms.txt)
- [Fuentio Company enrichment API pricing, 8 plans](https://datacircle.dev/company-enrichment-apis/fuentio/free-trial/llms.txt)
- [Fuentio Business verification API pricing, 8 plans, POST /v1/verifications](https://datacircle.dev/business-verification-apis/fuentio/free-post-v1-verifications/llms.txt)

## Fuentio: business verification API alternatives

[Fuentio alternatives: other business verification API providers by price](https://datacircle.dev/fuentio-alternatives.txt)

We list Fuentio's cheapest paid plan first. Next we list other providers' plans closest to Fuentio in price per 1,000 companies.

- [Fuentio, €999 monthly, Compliance, POST /v1/verifications](https://datacircle.dev/business-verification-apis/fuentio/999-monthly-compliance-post-v1-verifications/llms.txt): $37.472 per 1,000, 55% complete
- [iApp Technology, top-up from ฿125, Prepaid credits, GET /ekyb/v1/company/search](https://datacircle.dev/business-verification-apis/iapp-technology/top-up-from-125-prepaid-credits-get-ekyb-v1-company-search/llms.txt): $37.409 per 1,000, 9% complete, stored
- [RFCCheck, $449 monthly, Growth, POST /v1/rfc/find-zip](https://datacircle.dev/business-verification-apis/rfccheck/449-monthly-growth-post-v1-rfc-find-zip/llms.txt): $37.417 per 1,000, 9% complete, live
- [handelsregister.ai, €499 monthly, Max, GET /v1/fetch-organization, fetch-organization](https://datacircle.dev/business-verification-apis/handelsregister-ai/499-monthly-max-get-v1-fetch-organization-fetch-organization/llms.txt): $37.435 per 1,000, 64% complete, 1 month
- [FirmAPI, €5 monthly](https://datacircle.dev/business-verification-apis/firmapi/5-monthly/llms.txt): $37.51 per 1,000, 36% 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 2026-11-10.

- https://api.fuentio.com/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://fuentio.com/docs/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://fuentio.com/docs/index.html.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://fuentio.com/legal/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://fuentio.com/pricing/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing