A list built on the registry is fresh by construction, where a purchased file ages the moment it is exported. The thing to watch is economic, not technical: each page is a payment, so an over-broad filter costs the price of pagination. Check the sector statistics before paging.
See a real response (free) Get the quote for /v1/prospection
Catalogue description, exactly as agents read it:
French B2B prospecting and lead generation over the full official French company registry (29.8M companies): build targeted company lists with multi-criteria filters — NAF/APE activity code, departement or postal-code prefix, legal form, workforce bracket, company age, active RGE environmental certification, gender-equality index. Returns 100 active companies per page; each page is one payment. Combine filters to narrow a market segment into fresh, registry-grade company lists for France.
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.
{
"criteres": {
"naf": "62.01Z",
"departement": "75",
"page": 1
},
"nombre_resultats": 100,
"page": 1,
"page_suivante": true,
"resultats": [
{
"siren": "100000348",
"denomination": "LES EDITIONS DIGITALES",
"activite_principale": "62.01Z",
"forme_juridique": "5710",
"tranche_effectif_salarie": "NN",
"date_creation": "2026-01-15",
"code_postal_siege": "75011",
"commune_siege": "PARIS"
}
]
}Price: $0.02. 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.
# 1. Le devis, sans rien payer : la route répond 402 avec son montant
curl -i https://api.sirenic.eu/v1/prospection
# 2. L'appel réglé — le client x402 paie le devis et rejoue la requête
npx x402-fetch https://api.sirenic.eu/v1/prospection
# 3. Ou en MCP, dans Claude Code / Cursor / un agent
claude mcp add --transport http sirenic https://api.sirenic.eu/mcpNo e-mail addresses, no phone numbers, no named contacts: that data is not in the official registries. We deliver qualified companies, not contact details.
/v1/recherche — $0.001/v1/secteur/{code_naf}/benchmarks — $0.05/v1/kyb/batch — $0.105 / entitéEvery 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| Route | Price | What it returns |
|---|---|---|
/v1/prospection (free sample) | $0.02 | French B2B prospecting and lead generation over the full official French company registry (29.8M companies): build targeted company lists with multi-criteria filters — NAF/APE activity code, departement or postal-code prefix, legal form, workforce bracket, company age, active RGE environmental certification, gender-equality index. Returns 100 active companies per page; each page is one payment. Combine filters to narrow a market segment into fresh, registry-grade company lists for France. |
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/prospection Get notified about euro packs