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VAT Number Validation
x402
VAT Number Validation is a paid API for AI agents from anibalb.duckdns.org, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-31).
Validates a VAT (Value Added Tax) number for a given country and returns the associated business name and validity status
Price / call$0.005
Success—
StatusUnknown
How this service works
Public data and utility APIs paid per call in USDC on Base (x402). No accounts, no API keys. 174 routes: crypto/equity data, onchain reads, DNS/email/security intel, geo/weather, x402 payment diagnostics, dev utilities and more.
Output
Returns a JSON object with a 'valid' boolean indicating whether the VAT number is registered and active, and a 'name' string containing the registered business name associated with the VAT number.
Example use cases
Supplier invoice compliance check
“Before I pay this invoice, can you verify that the VAT number DE812345678 for Germany is legitimate and tell me what company name is registered to it?”
E-commerce customer VAT verification
“A customer claims their VAT number is FR12345678901 in France — can you validate it so I can apply the correct tax exemption?”
New vendor onboarding validation
“We're onboarding a new vendor in the Netherlands with VAT number NL123456789B01 — can you confirm it's valid and what business name is associated with it?”
Technical details
Endpoint
GEThttps://anibalb.duckdns.org/x402/vat-check?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, pay-per-call VAT number validation without managing API keys or subscriptions. Ideal for agent workflows that need to verify EU or international VAT registrations on-demand, especially when integrating into invoicing, vendor onboarding, or tax compliance automation pipelines.
Side effects
- Invalid or malformed VAT number format returns valid: false
- Unsupported country code may return an error or null result
- VAT lookup service unavailability causes request failure
- VAT number exists but is deregistered or expired returns valid: false
- Missing required query parameters (country or vat) results in a 400-level error
- Payment failure via x402 prevents the request from completing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"name": "Example GmbH",
"valid": true
}
}Tags
x402
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