Sirenic
GET https://api.sirenic.eu/v1/eu/entreprise/IE/:numero
Official Irish company registry lookup (Companies Registration Office, CRO Open Data, complete daily snapshot, CC BY 4.0). CRO number, 1-7 digits, e.g. 600161. Common identity (name, type, status, incorporation, registered office with Eircode) plus the CRO block: 33 status codes in closed families (normal, dissolved, liquidation, examinership…), 45 type codes, annual-return dates, last accounts, NACE, 2022-2024 filings index. 404 without charge if absent or of unknown type.
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/IE/:numero"
# 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 | 743 ms | $0.01 |
| 2026-10-11 05:00 | Valid 402 | 402 | 672 ms | $0.01 |
| 2026-10-11 00:45 | Valid 402 | 402 | 958 ms | $0.01 |
| 2026-10-10 20:15 | Valid 402 | 402 | 330 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