Profile of a Belgian company

Belgium is the only country where we also serve establishments and the national activity classification. 1,958,234 companies are in the database. The vintage is monthly, re-ingested at the start of each month — the response carries its snapshot date.

See a real response (free) Get the quote for /v1/eu/entreprise/BE/{id}

What the route returns

Catalogue description, exactly as agents read it:

Official Belgian company registry lookup (KBO/BCE, Banque-Carrefour des Entreprises / Kruispuntbank van Ondernemingen). Query: /v1/eu/entreprise/BE/0403199702 (10-digit enterprise number, with or without dots). Returns legal name, legal form, normalized status, incorporation date, registered office, NACEBEL activities with French labels, the establishment-unit list, VAT number and LEI, plus a link to the official register entry — Belgian company data from KBO/BCE open data, refreshed daily.

Expected identifier

Belgian enterprise number, 10 digits.

A wrongly formatted identifier returns 400 and is not billed — but it costs you a round trip. It is the leading cause of failed calls on the foreign routes.

Extract from a genuinely paid response

Dated snapshot from 2026-07-29, truncated to one item per array. It is not live data. The full extract is served free of charge from the samples surface, and the schema from the OpenAPI document.

{
 "pays": "BE",
 "registre": "Banque-Carrefour des Entreprises (KBO/BCE)",
 "id_national": "0403170701",
 "denomination": "ELECTRABEL",
 "forme_juridique": {
  "code": "014",
  "libelle": "Société anonyme"
 },
 "statut": "actif",
 "adresse_siege": {
  "ville": "BRUXELLES",
  "pays": "BE"
 },
 "activite": {
  "nomenclature": "NACEBEL 2025",
  "code": "35111",
  "libelle": "Production d'électricité"
 },
 "activites": [
  {
   "nomenclature": "NACEBEL 2025",
   "code": "35111",
   "libelle": "Production d'électricité",
   "classification": "MAIN"
  }
 ],
 "nombre_etablissements": 2,
 "identifiants": {
  "tva": "BE0403170701",
  "lei": null
 },
 "lien_registre": "https://kbopub.economie.fgov.be/kbopub/zoeknummerform.html?nummer=0403170701",
 "data_freshness": "stock Banque-Carrefour des Entreprises (KBO/BCE) (2026-07)",
 "source": "Registres officiels : Brønnøysundregistrene (NO, NLOD), e-Business Register (EE, CC-BY 4.0), Uzņēmumu reģistrs (LV), KBO/BCE (BE), CVR (DK), Companies House (GB, OGL), ARES (CZ), Register právnických osôb (SK, CC-BY 4.0), PRH/YTJ (FI, CC-BY 4.0), Krajowy Rejestr Sądowy (PL), Zefix (CH, OGD), Bolagsverket (SE), GLEIF (CC0)",
 "disclaimer": "Données rediffusées telles que publiées par les registres officiels, dans un schéma unifié ; `statut` est une normalisation en 3 valeurs, le libellé source est conservé dans `statut_detail`. / Official register data as published, unified schema; `statut` is a 3-value normalization."
}

Price and billing

Price: $0.01. The authoritative amount is the one in the 402 quote returned by the route itself — not this text, which derives from the same grid but is still just a page.

An error response cancels the payment: a 400, 404 or 503 is never billed. An upstream outage closes the route with a 503 rather than serving a degraded response.

Calling the route

# 1. Le devis, sans rien payer : la route répond 402 avec son montant
curl -i https://api.sirenic.eu/v1/eu/entreprise/BE/{id}

# 2. L'appel réglé — le client x402 paie le devis et rejoue la requête
npx x402-fetch https://api.sirenic.eu/v1/eu/entreprise/BE/{id}

# 3. Ou en MCP, dans Claude Code / Cursor / un agent
claude mcp add --transport http sirenic https://api.sirenic.eu/mcp

What this route does not do

No beneficial owners: the Belgian register is behind authorisation and closed to unauthorised access — which applies to our competitors too, as their own responses show (empty field).

Neighbouring routes

• /v1/eu/entreprise/{pays}/{id}/comptes — $0.01
• /v1/eu/facturation/dossier — $0.03

How you pay

Every route is paid per call, in USDC or EURC on the Base network, over the x402 protocol: no account to create, no API key, no subscription. The first call returns a 402 quote your client settles, then replays the call. A failed call is never billed.

Would you rather have a euro invoice and prepaid credits? That is in preparation, and we will not announce a date until it is open. Write to contact@sirenic.eu and we will let you know when it opens.

Paid responses are Ed25519-signed: you can later prove what was served to you, and when. The whole catalogue is free to read in the OpenAPI document and in llms.txt.

One call, end to end

# Client x402 (npm) — le devis 402 est réglé et l'appel rejoué automatiquement
npx x402-fetch https://api.sirenic.eu/v1/entreprise/552032534

# Ou en MCP, dans Claude Code / Cursor
claude mcp add --transport http sirenic https://api.sirenic.eu/mcp

Routes used and pricing

Take it further

No account to create, no key to request: the first step is free and shows you exactly what you would be buying.

See a real response (free) Get the quote for /v1/eu/entreprise/BE/{id} Get notified about euro packs

Read next

• Querying European company registers