Government — entry 086 of 90
OpenMercantil
OpenMercantil is a REST API over Spain's BORME (Boletín Oficial del Registro Mercantil) company registry, aggregating roughly 2.8 million companies, 970,000 officers, and 7.1 million corporate acts from 29 official sources. Core endpoints, confirmed live, cover company and person search, per-company event timelines, and daily BORME summaries in JSON or CSV, plus premium add-ons like trust scores, ownership networks, and sanctions screening. The free tier needs no API key and has open CORS, capped at 60 requests/minute and 200/day; paid Profesional/MAX/Enterprise tiers raise those limits via an API key.
AuthenticationNone requiredCall it straight away — no key, no signup.
HTTPSSupportedTraffic is encrypted in transit.
CORSEnabledCallable directly from browser JavaScript.
PricingFreemiumA usable free tier exists, with paid plans for more volume.
FormatsJSON, CSVResponses can be requested as JSON or CSV.
GreatAPIs Score
Score91
Authentication25/25No authentication required
Pricing17/20Freemium tier available
Docs14/20Documentation URL provided
Formats15/15Supports 2 response formats
Freshness20/20Verified within 6 months
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<a href="https://greatapis.com/api/openmercantil/"><img src="https://greatapis.com/badge/openmercantil.svg" alt="Scored 91 on greatapis.com"></a>Auth quickstart
- No key needed — call it now.
Stored keyNo key stored
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.