A company's intellectual property

An angle standard company records ignore, and one that says a lot: a company with no filings in a market where branding matters, or conversely a patent portfolio that explains a valuation. Useful in acquisition due diligence as much as in sales qualification.

See a real response (free) Get the quote for /v1/entreprise/{siren}/pi

What the route returns

Catalogue description, exactly as agents read it:

Intellectual property portfolio of a French company from official INPI open data: patents, trademarks and designs filed — counts plus recent items with number, title/label, status, date and classification. Designs: one line per filing. Covers French patents, trademark registrations and industrial designs in a single call, an R&D / brand-value signal not served to agents elsewhere, useful for due diligence on innovation assets. Patent inventor names (natural persons) are never returned.

Expected identifier

9-digit company number.

A wrongly formatted identifier returns 400 and is not billed — but it costs you a round trip. It is the leading cause of failed calls on the foreign routes.

Extract from a genuinely paid response

Dated snapshot from 2026-08-05, 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.

{
 "siren": "552032534",
 "marques": {
  "nombre": 88,
  "liste": [
   {
    "numero": "4789796",
    "libelle": "THE ONE HOME",
    "statut": "Marque enregistrée"
   }
  ],
  "liste_tronquee": true,
  "nombre_unite": "titres"
 },
 "brevets": {
  "nombre": 12,
  "liste": [
   {
    "numero": "FR2728873A1",
    "libelle": "EMBALLAGE EN FILM DE MATERIAU SOUPLE ET SON PROCEDE DE FABRICATION",
    "date": "19960705",
    "classification": "B65D 65/32, B65D 75/58"
   }
  ],
  "liste_tronquee": false,
  "nombre_unite": "titres"
 },
 "dessins_modeles": {
  "nombre": 3,
  "liste": [
   {
    "numero": "054041",
    "libelle": "Ornementation de supports de communication",
    "date": "20050819",
    "classification": "2003"
   }
  ],
  "liste_tronquee": false,
  "nombre_unite": "depots"
 },
 "source": "INPI — bases ouvertes de propriété industrielle (marques, brevets, dessins & modèles)",
 "data_freshness": "INPI PI open data (marques/brevets hebdo, D&M bimensuel), cache 24 h"
}

Price and billing

Price: $0.03. 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.

Calling the route

# 1. Le devis, sans rien payer : la route répond 402 avec son montant
curl -i https://api.sirenic.eu/v1/entreprise/552032534/pi

# 2. L'appel réglé — le client x402 paie le devis et rejoue la requête
npx x402-fetch https://api.sirenic.eu/v1/entreprise/552032534/pi

# 3. Ou en MCP, dans Claude Code / Cursor / un agent
claude mcp add --transport http sirenic https://api.sirenic.eu/mcp

Neighbouring routes

• /v1/entreprise/{siren} — $0.005
• /v1/entreprise/{siren}/capital — $0.35

How you pay

Every 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

Routes used and pricing

Take it further

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/entreprise/{siren}/pi Get notified about euro packs