Payments · x402 · early usage

Invoice verification for France — cross-check the identifiers PRINTED ON an invoice in…

by api.sirenic.eu · discovered, not yet claimed by its owner · updated 2026-10-13

30d calls3

30d payers2

MethodGET

Outputjson

Mirrored from Coinbase's public x402 Bazaar. The description is the provider's own text and has not been reviewed here; the payment requirements are copied as published.

What it does

Invoice verification for France — cross-check the identifiers PRINTED ON an invoice in one call: SIREN against the official registry (existence, active status, live), the VAT number on the invoice against the one computed from the SIREN AND live against VIES, the IBAN (ISO form, key digits, bank identified). Deterministic verdict coherent/incoherent/inverifiable, closed-list reasons. Flags a VAT that belongs to another company or a ceased supplier. Not a payee verification.

Tags: france · invoice-verification · supplier-verification · vat-check · iban-check · bazaar

Call contract

Method: GET
Input: query parameters
Output: json
Last paid call: 2026-10-13

Input example from Bazaar metadata

{
  "iban": "FR1420041010050500013M02606",
  "siren": "552032534",
  "tva": "FR27552032534"
}

Output example

{
  "controles": {
    "iban": {
      "banque": {
        "identifiee": true
      },
      "exemple_de_documentation": true,
      "valide": true
    },
    "tva": {
      "attendue_pour_ce_siren": "FR27552032534",
      "correspond_au_siren": true,
      "fournie": "FR27552032534",
      "vies": {
        "statut": "valide"
      }
    }
  },
  "disclaimer": "Croisement déterministe des identifiants affichés par une facture (raisons en liste fermée, tracées à leur source) — ni un avis de conformité fiscale, ni une Verification of Payee : le volet bancaire contrôle la FORME et identifie la banque, sans vérifier l'existence du compte ni le nom du titulaire — un IBAN valide mais substitué n'est pas détectable ici. / Deterministic cross-check of the identifiers printed on an invoice — neither tax advice nor a Verification of Payee: the bank leg checks FORM and identifies the bank; a valid-but-swapped IBAN cannot be detected here.",
  "etat_administratif": "actif",
  "non_verifie": [
    "existence_du_compte",
    "nom_du_titulaire"
  ],
  "raisons": [
    {
      "code": "iban_exemple_documentation",
      "niveau": "information",
      "source": "IBAN publié comme EXEMPLE de documentation — bien formé ; existence du compte non contrôlée."
    }
  ],
  "siren": "552032534",
  "source": "Composition Sirenic : INSEE Sirene (état, live), croisement TVA calculée (clé FR déterministe), VIES (Commission européenne, live), contrôle de forme IBAN + registres bancaires officiels",
  "verdict": "coherent"
}

Use with an agent

Discover. Agents find this listing with GET https://bazaar.saylorinnovations.com/discovery/search?query=…, the MCP tool search_resources, or /discovery/resources.
Inspect. Fetch /resources/30322.json for the price and payment options.
Pay. Call GET https://api.sirenic.eu/v1/facture/verifier. The provider answers 402 with its payment requirements. An x402 client signs one of the options below and retries with PAYMENT-SIGNATURE.
Execute. The provider returns 200 with the data. Agent Bazaar is not in the request path and never sees your payment.

For humans

You don't need an account or an API key; you need a wallet holding a small amount of USDC on Base, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.

Pricing & payment

Price: $0.02 / request
Protocol: x402 v2
Auth: No account or API key. Pay per request.
Networks: Base
Demand: 3 calls · 2 unique payers in 30d (public x402 Bazaar data)

x402 payment requirements

Scheme	Network	Asset	Amount	Pay to	Timeout
exact	Base eip155:8453	USDC	$0.02	0x76A672EEe56D29D475b0715cc03B8C99D70EC8A2	45s
exact	Base eip155:8453	0x60a3E35Cc302bFA44Cb288Bc5a4F316Fdb1adb42	20000	0x76A672EEe56D29D475b0715cc03B8C99D70EC8A2	45s

accepts[] (raw JSON)

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x76A672EEe56D29D475b0715cc03B8C99D70EC8A2",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "20000",
    "amountUsd": 0.02,
    "maxTimeoutSeconds": 45
  },
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x76A672EEe56D29D475b0715cc03B8C99D70EC8A2",
    "asset": "0x60a3E35Cc302bFA44Cb288Bc5a4F316Fdb1adb42",
    "amount": "20000",
    "maxTimeoutSeconds": 45
  }
]

Schemas

Output schema (JSON Schema)

{
  "properties": {
    "example": {
      "type": "object"
    },
    "type": {
      "type": "string"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}

Example shape — generated from the schema, not a captured live response

{
  "example": {},
  "type": "string"
}

Examples

curl

curl "https://api.sirenic.eu/v1/facture/verifier"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://api.sirenic.eu/v1/facture/verifier");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.get("https://api.sirenic.eu/v1/facture/verifier")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Details

Provider: api.sirenic.eu
Endpoint: https://api.sirenic.eu/v1/facture/verifier
Machine-readable: /resources/30322.json