E

eu-verify · FR Siret Check

by eu-verify

GETBase

$0.001

per call · USD Coin on Base

Instant pre-validation of French company numbers before invoicing or costly Sirene API calls. Auto-detects SIREN (9 digits) vs SIRET (14 digits), applies the INSEE Luhn rule and the documented La Poste exception (356000000*: digit sum mod 5). Query: ?number=44306184100047 (spaces/dots/dashes tolerated). Returns valid, type, siren, nic and the rule applied. Pure offline computation, 1y cache.

Endpoint

GET https://data.greeneris.io/v1/fr/siret-check

1

Calls / 30d

1

Unique payers / 30d

Aug 27

Last called

exact

Payment scheme

Call this service

TypeScript · @x402/fetch
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);

const res = await fetchWithPay("https://data.greeneris.io/v1/fr/siret-check", {
  method: "GET",
});
const data = await res.json();
cURL
curl -X GET \
  "https://data.greeneris.io/v1/fr/siret-check?number=44306184100047" \
  -H "X-PAYMENT: <signed x402 payment>"

Example response

{
  "nic": "00047",
  "number": "44306184100047",
  "rule": "luhn",
  "siren": "443061841",
  "source": "offline INSEE formation rule: Luhn checksum + La Poste exception (no registry lookup)",
  "type": "siret",
  "valid": true
}

Payment details

Pay to0x6ab8efe305cce67daa48c97bde29c04402822dff
AssetUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913
NetworksBase
Schemesexact

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