# Search a French company

This is the gateway to everything else: without a company number, no other route can work. The useful particularity here is the 0-to-1 confidence score: for a name like “Martin”, ten companies answer, and it is that score that tells you which one you meant.

## What the route returns

Catalogue description, exactly as agents read it:

**French company search and company lookup by name or SIREN in the official French company registry (INSEE Sirene / INPI RNE open data). Name search returns the top 10 matches with identity, SIREN, NAF code, city and active/ceased status, plus a score_confiance (0-1 match confidence) that helps disambiguate homonyms. The entry point to official data and company data on France: resolve a trading name to its SIREN identifier before pulling the full company profile, filings or financials.**

## Expected identifier

No identifier: a free-text query parameter. A 9-digit company number is also accepted and returns the matching company.

> ⚠️ 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 2026-07-29, truncated to one item per array. It is not live data. The full extract is served **free of charge** from [the samples surface](https://api.sirenic.eu/exemples/), and the schema from the OpenAPI document.

```
{
 "total_results": 10,
 "resultats": [
  {
   "siren": "552032534",
   "denomination": "DANONE",
   "statut_diffusion": "totale",
   "etat_administratif": "actif",
   "activite_principale": "70.10Z",
   "commune_siege": "PARIS",
   "code_postal_siege": "75009",
   "score_confiance": 1
  }
 ],
 "source": "INSEE Sirene / INPI RNE via recherche-entreprises.api.gouv.fr, licence ouverte Etalab 2.0",
 "disclaimer": "Données issues de l'open data, fournies en l'état sans garantie. / Open data, provided as is without warranty.",
 "data_freshness": "stock Sirene mensuel (2026-07-01), dirigeants temps réel"
}
```

## Price and billing

Price: **$0.001**. 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/recherche

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

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

## What this route does not do

If your only need is resolving a name to an identifier, a free public API does it just as well — we say so in our comparison. Pay for this route when you chain, in the same transaction, into what that free API does not serve.

## Neighbouring routes

- `/v1/entreprise/{siren}` — $0.005
- `/v1/prospection` — $0.02
- `/v1/dirigeant/recherche` — $0.02

## 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](mailto:contact@sirenic.eu?subject=Euro%20credit%20packs) 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](https://api.sirenic.eu/openapi.json) and in [llms.txt](https://api.sirenic.eu/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

| Route | Price | What it returns |
| --- | --- | --- |
| `/v1/recherche` | $0.001 | French company search and company lookup by name or SIREN in the official French company registry (INSEE Sirene / INPI RNE open data). Name search returns the top 10 matches with identity, SIREN, NAF code, city and active/ceased status, plus a score_confiance (0-1 match confidence) that helps disambiguate homonyms. The entry point to official data and company data on France: resolve a trading name to its SIREN identifier before pulling the full company profile, filings or financials. |

## Take it further

- [See a real response (free)](https://api.sirenic.eu/exemples/recherche.json)
- [Get the quote for /v1/recherche](https://api.sirenic.eu/v1/recherche)
- [Get notified about euro packs](mailto:contact@sirenic.eu?subject=Euro%20credit%20packs)

## Read next

- [Building a B2B prospecting list](https://api.sirenic.eu/en/use-cases/build-b2b-prospecting-list-from-official-french-registry)
- [Sirenic or the free company-search API](https://api.sirenic.eu/en/compare/sirenic-or-free-french-company-search-api)

---

Volume figures on this page were measured in our database on 2026-08-19. They are dated snapshots, not live counters.

Full catalogue : https://api.sirenic.eu/