# OneMCP, free: Business verification API

> Recherche full-text d'entreprises françaises. Retourne total_results, has_more pour la pagination.

OneMCP's Free plan for the business verification API costs $0.00 per 1,000 companies. We check each provider's docs for 11 fields. OneMCP's docs list 1: Registered name.
We haven't run OneMCP through [our business verification API benchmark](https://datacircle.dev/best-business-verification-api.txt) yet.
This plan is free. We rank 634 plans for business verification APIs by price. Half the plans cost $10.469 or less per 1,000 companies. [200 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, for China only: 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), [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/onemcp/free
- [Business verification API in 2026: the 8 best compared](https://datacircle.dev/best-business-verification-api.txt)
- Get it: https://onemcp.fr/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing#pricing
- Request: `POST https://api.onemcp.fr/api/company_search`
- API key: with the plan, on https://onemcp.fr/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing#pricing
- Its API docs: https://onemcp.fr/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Sold by: OneMCP (https://onemcp.fr?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing)
- Checked: 2026-11-11

## In the answer

- Completeness: 9%
- Registered name: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: mcp_guide · company_deep_profile · area_business_intelligence · company_get · company_enrich · company_financial_history · company_batch · company_sirene · company_rne · company_uk · legal_announcements_search · legal_procedures_check · law_search · jurisprudence_search · code_table_of_contents · address_search · address_reverse · address_risks · address_validate · address_batch · admin_commune_search · admin_commune_get · admin_departement_list · admin_departement_communes · admin_region_list · admin_epci_list · admin_epci_communes · commune_stats · realestate_transactions · realestate_stats · vat_validate · lei_lookup · lei_search · company_vat_check · patents_search · patent_get · jobs_search · rome_search · public_contracts_search · sources_list

## Not found

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

## In their words

- Their pitch: Recherche full-text d'entreprises françaises. Retourne total_results, has_more pour la pagination.

## Data

- Countries: France
- Keep data: no limit
- Use data: Il est interdit d'utiliser OneMCP pour : Constituer des bases de données en masse à des fins de démarchage commercial non consenti, Contourner les limitations de débit ou abuser du service, Revendre l'accès à l'API sans accord préalable, Toute activité illégale au regard du RGPD ou des lois françaises/européennes

## Plan

- Pay: €0
- Expires: unused quota is not carried over

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: query. Optional: page, per_page, departement, region, naf, active_only, is_active
- Method: POST
- Path: /api/company_search

## About the plan

- Plan: Free
- Who can get it: anyone

## The 3 fields the plan's answer can hold

company ID, registered name, total results

## OneMCP's plans (5)

- [OneMCP, free](https://datacircle.dev/business-verification-apis/onemcp/free/llms.txt): $0.00 per 1,000, 9% complete
- [OneMCP, €5 monthly](https://datacircle.dev/business-verification-apis/onemcp/5-monthly/llms.txt): $1.125 per 1,000, 9% complete
- [OneMCP, €29 monthly](https://datacircle.dev/business-verification-apis/onemcp/29-monthly/llms.txt): $1.305 per 1,000, 9% complete
- [OneMCP, €199 monthly](https://datacircle.dev/business-verification-apis/onemcp/199-monthly/llms.txt): $0.896 per 1,000, 9% complete
- [OneMCP, contact us](https://datacircle.dev/business-verification-apis/onemcp/contact-us/llms.txt): 9% complete

## OneMCP's calls for this API (1)

- `POST /api/company_search`: [OneMCP, free](https://datacircle.dev/business-verification-apis/onemcp/free/llms.txt)

## OneMCP's APIs (3)

- [OneMCP Business verification API pricing, 5 plans](https://datacircle.dev/business-verification-apis/onemcp/free/llms.txt)
- [OneMCP Company discovery API pricing, 5 plans](https://datacircle.dev/company-discovery-apis/onemcp/free/llms.txt)
- [OneMCP Company enrichment API pricing, 5 plans, POST /api/company_batch](https://datacircle.dev/company-enrichment-apis/onemcp/free-post-api-company-batch/llms.txt)
- [OneMCP Company enrichment API pricing, 5 plans, POST /api/company_deep_profile](https://datacircle.dev/company-enrichment-apis/onemcp/free-post-api-company-deep-profile/llms.txt)
- [OneMCP Company enrichment API pricing, 5 plans, POST /api/company_enrich](https://datacircle.dev/company-enrichment-apis/onemcp/free-post-api-company-enrich/llms.txt)
- [OneMCP Company enrichment API pricing, 5 plans, POST /api/company_financial_history](https://datacircle.dev/company-enrichment-apis/onemcp/free-post-api-company-financial-history/llms.txt)
- [OneMCP Company enrichment API pricing, 5 plans, POST /api/company_get](https://datacircle.dev/company-enrichment-apis/onemcp/free-post-api-company-get/llms.txt)
- [OneMCP Company enrichment API pricing, 5 plans, POST /api/company_vat_check](https://datacircle.dev/company-enrichment-apis/onemcp/free-post-api-company-vat-check/llms.txt)
- [OneMCP Company enrichment API pricing, 5 plans, POST /api/vat_validate](https://datacircle.dev/company-enrichment-apis/onemcp/free-post-api-vat-validate/llms.txt)

## OneMCP: business verification API alternatives

[OneMCP alternatives: every business verification API plan in France compared](https://datacircle.dev/business-verification-api-pricing/france.md)

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

- [OneMCP, €199 monthly](https://datacircle.dev/business-verification-apis/onemcp/199-monthly/llms.txt): $0.896 per 1,000, 9% complete
- [Croma, $299 monthly, Pro, POST /global/gleif/entity/v1](https://datacircle.dev/business-verification-apis/croma/299-monthly-pro-post-global-gleif-entity-v1/llms.txt): $0.85 per 1,000, 55% complete, stored
- [VerifNow, $49 monthly](https://datacircle.dev/business-verification-apis/verifnow/49-monthly/llms.txt): $0.98 per 1,000, 18% complete, 24 hours
- [opendata.best, $199 monthly](https://datacircle.dev/business-verification-apis/opendata-best/199-monthly/llms.txt): $0.995 per 1,000, 36% complete
- [NeuralVerge, $50 monthly, Base, POST /functions/v1/run-fr-companies-search](https://datacircle.dev/business-verification-apis/neuralverge/50-monthly-base-post-functions-v1-run-fr-companies-search/llms.txt): $1.00 per 1,000, 64% 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 2026-11-11.

- https://api.onemcp.fr/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://onemcp.fr?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://onemcp.fr/cgv?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://onemcp.fr/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://onemcp.fr/mentions-legales?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing