Api Endpoint

Sirenic

European supplier and invoice verification for e-invoicing compliance in Belgium (mandate since 1 Jan 2026) and Poland (KSeF): registry identity, VIES VAT check, Peppol reachability (BE), IBAN form + key, bank and, in Poland, the official White List: is the IBAN DECLARED by the taxpayer? Paying an undeclared account over 15,000 PLN costs the VAT deduction and joint liability. Natural person or doubtful form (BE, PL): no name or address (ecartes). Deterministic verdict, closed-list reasons.

Open interactive test console

Offering

Provider
api.sirenic.eu
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Legal And Compliance
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://api.sirenic.eu/v1/eu/facturation/dossier
MIME type
application/json
First seen
2026-10-16T01:50:14.534Z
Last seen
Tags
europe, e-invoicing, supplier-verification, belgium, poland

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.03 USDC
Atomic price: 30000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
30000 atomic units
Atomic price: 30000 · Network: eip155:8453 · Asset: 0x60a3E35Cc302bFA44Cb288Bc5a4F316Fdb1adb42 · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "30000",
    "payTo": "0x76A672EEe56D29D475b0715cc03B8C99D70EC8A2"
  },
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x60a3E35Cc302bFA44Cb288Bc5a4F316Fdb1adb42",
    "amount": "30000",
    "payTo": "0x76A672EEe56D29D475b0715cc03B8C99D70EC8A2"
  }
]

Observed health

Status
Healthy
Latest latency
1241 ms
Average latency
978 ms
HTTP status
402
Last checked
Reachability
100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "pays": {
          "type": "string",
          "description": "Required. BE or PL only (for France use /v1/facturation/dossier). Anything else → 400 pays_non_couvert."
        },
        "id": {
          "type": "string",
          "description": "Required. BE: 10-digit enterprise number (KBO/BCE); an entity without legal form (natural-person enterprise) is served without name, counted in ecartes. PL: 10-digit NIP; a taxpayer without KRS (sole trader) is served without name or address, counted in ecartes. Dots, spaces and dashes tolerated; must match ^[0-9.\\s-]{9,14}$ or 400 identifiant_invalide."
        },
        "iban": {
          "type": "string",
          "description": "Optional payee IBAN. Omitted → reason `iban_non_fourni` (informational). In POLAND it is what unlocks the White List check: an account not declared by that taxpayer is a BLOCKING reason (loss of VAT deduction + joint liability above 15 000 PLN)."
        }
      },
      "required": [
        "pays",
        "id"
      ]
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET"
          ],
          "type": "string"
        },
        "queryParams": {
          "properties": {
            "iban": {
              "description": "Optional payee IBAN. Omitted → reason `iban_non_fourni` (informational). In POLAND it is what unlocks the White List check: an account not declared by that taxpayer is a BLOCKING reason (loss of VAT deduction + joint liability above 15 000 PLN).",
              "type": "string"
            },
            "id": {
              "description": "Required. BE: 10-digit enterprise number (KBO/BCE); an entity without legal form (natural-person enterprise) is served without name, counted in ecartes. PL: 10-digit NIP; a taxpayer without KRS (sole trader) is served without name or address, counted in ecartes. Dots, spaces and dashes tolerated; must match ^[0-9.\\s-]{9,14}$ or 400 identifiant_invalide.",
              "type": "string"
            },
            "pays": {
              "description": "Required. BE or PL only (for France use /v1/facturation/dossier). Anything else → 400 pays_non_couvert.",
              "type": "string"
            }
          },
          "required": [
            "pays",
            "id"
          ],
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}