Sirenic
GET https://api.sirenic.eu/v1/eu/entreprise/BE/:id
Official Belgian company registry lookup (KBO/BCE, Banque-Carrefour des Entreprises / Kruispuntbank van Ondernemingen). Query: /v1/eu/entreprise/BE/0403199702 (10-digit number, dots optional). Returns legal name, legal form, normalized status, incorporation date, registered office, NACEBEL activities (French labels), establishment units, VAT, LEI and register link. Legal persons only: an entity without legal form or of a form without legal personality returns 404, not billed.
How to buy
This endpoint takes pay-per-call payments over x402. Call it once without paying to see its live price; any x402 client then pays and retries automatically.
curl -i -X GET "https://api.sirenic.eu/v1/eu/entreprise/BE/:id"
# HTTP/1.1 402 Payment Required: price, asset and payTo are in the responseRecent checks
| Checked (UTC) | Result | Status | Time | Live price |
|---|---|---|---|---|
| 2026-10-11 09:46 | Valid 402 | 402 | 1405 ms | $0.01 |
| 2026-10-11 05:15 | Valid 402 | 402 | 1271 ms | $0.01 |
| 2026-10-11 00:45 | Valid 402 | 402 | 935 ms | $0.01 |
| 2026-10-10 20:15 | Valid 402 | 402 | 959 ms | $0.01 |
Receipts
No test purchases yet. Graded test purchases are next on our list; until then every number here comes from unpaid checks.
What a check proves