Sirenic
GET https://api.sirenic.eu/v1/kyb/:siren
Company lookup KYB: Know Your Business verification of a French company in one call, official company data for due diligence, compliance and customer onboarding: identity, officers, BODACC legal alerts (insolvency, deregistration), commercial-court decisions (Judilibre), filed financials, sanctions screening of the company and each officer against the 6 official lists, computed VAT number and a completeness score. Per-block provenance: every block states its official register and as-of date.
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/kyb/:siren"
# 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 09:30 | Valid 402 | 402 | 183 ms | $0.15 |
| 2026-10-11 05:00 | Valid 402 | 402 | 337 ms | $0.15 |
| 2026-10-11 00:45 | Valid 402 | 402 | 926 ms | $0.15 |
| 2026-10-10 20:15 | Valid 402 | 402 | 493 ms | $0.15 |
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