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SYNTHORA vatcheck
x402
SYNTHORA vatcheck is a paid API for AI agents from vatcheck.hergertsynthora.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-13).
Validates EU VAT numbers in real-time via the official European Commission VIES SOAP service, returning validity status, registered trader name and address, with optional fiscal-context digest from BOE and EUR-Lex.
Price / call$0.02
Success—
StatusUnknown
How this service works
EU VAT validation against the European Commission VIES service (official SOAP checkVat, real-time): validity, registered trader name & address for any EU VAT id (EL Greece, XI Northern Ireland included). Optional fiscal-context bundle from BOE (Spain official gazette) and EUR-Lex (EU law) intel feeds. Built for compliance, invoicing and B2B-onboarding agents. $0.02 USDC via x402 on Base. SYNTHORA. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.
Output
A JSON object indicating whether the VAT number is valid, the registered trader name and address, country code, and request date from the VIES service. Optionally includes a fiscal_context bundle with recent BOE (Spain official gazette) and EUR-Lex (EU law) digest items. Also returns provenance metadata including cache status, fetch timestamp, latency, and data sources used.
Example use cases
B2B supplier onboarding check
“Before we add this new vendor to our system, can you validate their VAT number DE123456789 and confirm the registered company name and address matches what they gave us?”
Invoice pre-issuance VAT verification
“I'm about to send an invoice to a French company — can you check if VAT number FR40303265045 is currently valid so I know I can apply the zero-rate correctly?”
Compliance audit for Greek subsidiary
“We need to verify our Greek partner's VAT number EL123456789 is still registered and active — please pull the trader details and any relevant EU fiscal context.”
Technical details
Endpoint
POSThttps://vatcheck.hergertsynthora.com/service?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need authoritative, real-time EU VAT validation directly from the European Commission VIES service — not a cached or third-party database. Particularly suited for compliance-critical workflows, B2B onboarding, pre-invoice validation, or when you need the official registered trader name and address. The optional BOE/EUR-Lex fiscal context bundle adds value for Spanish or EU-regulation-aware compliance agents. Covers all EU member states including Greece (EL prefix) and Northern Ireland (XI prefix).
Side effects
- Invalid or malformed VAT number format returns ok:false with error detail
- VAT number not found in VIES returns valid:false
- VIES upstream unavailable returns error with no charge applied
- Unsupported country prefix returns validation error
- Network timeout from EC VIES SOAP service may cause delayed or failed response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| vat_number | string | EU VAT id with country prefix, e.g. IE6388047V (EL=Greece, XI=Northern Ireland) |
| include_bundle | boolean | attach BOE/EUR-Lex fiscal digest (default true) |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"niche": "vat_check",
"result": {
"vat": {
"valid": true,
"vat_number": "6388047V",
"trader_name": "GOOGLE IRELAND LIMITED",
"country_code": "IE",
"request_date": "2026-08-11+02:00",
"trader_address": "3RD FLOOR, GORDON HOUSE, BARROW STREET, DUBLIN 4"
},
"summary": "IE6388047V VÁLIDO — GOOGLE IRELAND LIMITED",
"fiscal_context": {
"boe": {
"feed": "boe",
"items": [],
"status": "ok"
},
"eurlex": {
"feed": "eurlex",
"items": [],
"status": "ok"
}
}
},
"provenance": {
"cache": "miss",
"fetched_at": 1786450000,
"latency_ms": 210,
"data_sources": [
"ec.europa.eu VIES checkVat (SOAP, oficial CE)",
"intel_gov_boe.json",
"intel_gov_eurlex.json"
]
}
}
}Tags
x402
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