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.
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"
}