# OpenMercantil, free, Gratuito, GET /api/v1/company/{slug}: Business verification API

> Devuelve el informe completo de una empresa: datos registrales, KPIs, timeline de actividad, cargos y lista de actos.

OpenMercantil's business verification API on its Gratuito plan. It costs $0.00 per 1,000 companies. OpenMercantil's docs list 3 of the 11 key fields we check: Registered name, Status, Officers.
We ran OpenMercantil in [our business verification API benchmark](https://datacircle.dev/best-business-verification-api.txt). We didn't score any OpenMercantil plan.
This plan is free. We rank 903 plans for business verification APIs by price. Half the plans cost $7.895 per 1,000 companies or less.
[CharityAPI's $15 monthly plan](https://datacircle.dev/business-verification-apis/charityapi/15-monthly-paid-get-api-organizations-ein/llms.txt) is the cheapest paid plan per 1,000 companies. CharityAPI's plan covers companies in the United States only. CharityAPI's $15 monthly plan charges nothing per call. You get as many companies as CharityAPI's rate limit allows.
[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 more up front than CharityAPI's $15 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/openmercantil/free-gratuito-get-api-v1-company-slug
- [Business verification API: the 12 best providers compared](https://datacircle.dev/best-business-verification-api.txt)
- Get it: https://openmercantil.es/precios?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Request: `GET https://openmercantil.es/api/v1/company/{slug}`
- API key: not needed
- Its API docs: https://openmercantil.es/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing#/Companies/getCompanyBySlug
- Sold by: OpenMercantil (https://openmercantil.es?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing)
- Checked: 2026-11-06

## In the answer

- Completeness: 27%
- Registered name: ✓
- Status: ✓
- Officers: ✓

## Price

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

## Aggregators

- Aggregators: none

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Devuelve el informe completo de una empresa: datos registrales, KPIs, timeline de actividad, cargos y lista de actos.

## Data

- Countries: Spain
- Keep data: no limit
- Use data: 2. Uso permitido: Consulta personal o profesional de fichas individuales de empresas y personas. Uso programático de la API pública respetando el rate-limit (60 req/min por IP). Reutilización de los datos bajo licencia CC BY 4.0 citando la fuente: BOE/BORME y OpenMercantil como intermediario técnico. Inclusión de fragmentos en investigación, periodismo y análisis con la atribución correspondiente. 3. Uso prohibido: Scraping masivo o automatizado por encima del rate-limit publicado. Reventa o redistribución del dataset presentándolo como «fuente oficial». Construcción de perfiles comerciales o publicitarios sobre personas físicas (RGPD art. 5.1.b). Cualquier intento de explotar vulnerabilidades, evadir limitaciones o degradar el servicio. Uso del servicio para finalidades ilícitas o contrarias al ordenamiento jurídico español.

## Plan

- Pay: €0
- You get: 200 requests a day
- Enough for: 200 calls a day

## Rate limit

- Per day: 200
- Per second: 1
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: slug
- Method: GET
- Path: /api/v1/company/{slug}

## About the plan

- Plan: Gratuito
- Who can get it: anyone

## The 32 fields the plan's answer can hold

slug, legal name, CIF, province, status, status detail, status date, CNAE, CNAE source, first seen, last seen, acts count, event ID, event date, event publish date, event type, act type, event title, event text, event province, event source, event source URL, officer name, officer person slug, officer role, officer appointed at, officer ended at, officer source, officer source URL, summary, data sources used, attributions

## OpenMercantil's plans (4)

- [OpenMercantil, free, Gratuito, GET /api/v1/company/{slug}](https://datacircle.dev/business-verification-apis/openmercantil/free-gratuito-get-api-v1-company-slug/llms.txt): $0.00 per 1,000, 27% complete
- [OpenMercantil, €57 monthly, Profesional, GET /api/v1/company/{slug}](https://datacircle.dev/business-verification-apis/openmercantil/57-monthly-profesional-get-api-v1-company-slug/llms.txt): $0.428 per 1,000, 27% complete
- [OpenMercantil, €197 monthly, MAX, GET /api/v1/company/{slug}](https://datacircle.dev/business-verification-apis/openmercantil/197-monthly-max-get-api-v1-company-slug/llms.txt): $0.148 per 1,000, 27% complete
- [OpenMercantil, contact us, Enterprise, GET /api/v1/company/{slug}](https://datacircle.dev/business-verification-apis/openmercantil/contact-us-enterprise-get-api-v1-company-slug/llms.txt): 27% complete

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

- `GET /api/v1/company/{slug}`: [OpenMercantil, free, Gratuito, GET /api/v1/company/{slug}](https://datacircle.dev/business-verification-apis/openmercantil/free-gratuito-get-api-v1-company-slug/llms.txt)
- `GET /api/v1/search`: [OpenMercantil, free, Gratuito, GET /api/v1/search](https://datacircle.dev/business-verification-apis/openmercantil/free-gratuito-get-api-v1-search/llms.txt)

## OpenMercantil's APIs (2)

- [OpenMercantil: similar companies API pricing, 4 plans](https://datacircle.dev/similar-company-apis/openmercantil/free/llms.txt)
- [OpenMercantil: business verification API pricing, 4 plans, GET /api/v1/company/{slug}](https://datacircle.dev/business-verification-apis/openmercantil/free-gratuito-get-api-v1-company-slug/llms.txt)

## OpenMercantil: business verification API alternatives

- [Dato Capital, €249 monthly](https://datacircle.dev/business-verification-apis/dato-capital/249-monthly/llms.txt): $0.14 per 1,000, 64% complete, stored
- [CNPJa, R$6,749.89 yearly](https://datacircle.dev/business-verification-apis/cnpja/r-6749-89-yearly/llms.txt): $0.148 per 1,000, 36% complete, stored
- [FirmeAPI, RON 499.99 monthly](https://datacircle.dev/business-verification-apis/firmeapi/ron-499-99-monthly/llms.txt): $0.148 per 1,000, 45% complete, 1 week
- [DanskCVRAPI, DKK 299 monthly, Pro, GET /companies/search](https://datacircle.dev/business-verification-apis/danskcvrapi/dkk-299-monthly-pro-get-companies-search/llms.txt): $0.15 per 1,000, 45% complete, 1 minute

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-06.

- https://openmercantil.es/api/documentacion?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://openmercantil.es/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://openmercantil.es/precios?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://openmercantil.es/reutilizacion-y-atribucion?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://openmercantil.es/terminos-de-uso?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://openmercantil.es/uso-razonable?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing