Sirenic
API for official French and European company data – pay per request, get signed responses with audit trail
| What is it | API for official French and European company data – pay per request, get signed responses with audit trail |
|---|---|
| Pricing | Unknown |
| Platform | API |
| API | Yes |
| Works with | n8n |
| Best for | verifying company information for due diligence, checking supplier credentials before payment |
Data updated Sept. 7, 2026
What does Sirenic do?
Sirenic is an API that gives you official business data from French and European registries. You pay per call—prices range from $0.002 to $1 per route—and each response is cryptographically signed so you can verify its origin offline. No subscriptions, no minimum commitment. The service covers company searches by name or SIREN, detailed profiles with directors and financials, credit risk scores, sanctions screening, and a full billing verification suite for e-invoicing obligations in France, Belgium, and Poland.
What makes Sirenic different is its emphasis on provenance and auditability. Every paid response includes an Ed25519 signature and a block-by-block provenance chain that identifies the official registry source, its license, and the exact date of the data as of time of purchase. Routes are documented with real paid examples, openAPI spec, and a public Github repository with executable verification examples. The API supports two payment models: x402 microtransactions (USDC/EURC) with no account needed, or traditional API keys with prepaid credits and invoices.
This tool is built for developers building AI agents that need reliable, verifiable business data. Compliance teams, financial analysts, and anyone dealing with supplier onboarding or invoice verification will find the billing routes particularly useful. Sirenic handles the gnarly details of checking VAT numbers against VIES, validating IBAN structure, and determining e-invoicing readiness—then hands you a signed response you can archive as proof. If your workflow requires trustworthy company data without the overhead of per-catalog agreements, Sirenic slots in neatly.
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