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Toolrail EU VAT Number Validator
x402
Toolrail EU VAT Number Validator is a paid API for AI agents from toolrail.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-12).
Validates an EU VAT number against the European Commission VIES registry, returning validity status, company name, and registered address.
Price / call$0.003
Success—
StatusUnknown
How this service works
Validate an EU VAT number against the official European Commission VIES registry, with retries and caching for reliability. Returns validity, company name and address. Use when onboarding or invoicing an EU business and you must confirm its VAT number is registered.
Output
Returns whether the VAT number is valid (boolean), the registered company name, and the registered company address as recorded in the VIES system. Results are cached for reliability and the service retries on transient VIES failures.
Example use cases
Onboarding new EU supplier
“We're about to add a new supplier from France — their VAT number is FR12345678901. Can you verify it against the EU VIES registry and confirm the company name and address on file?”
B2B invoice validation check
“Before I send an invoice to this Dutch client, can you validate their VAT number NL123456789B01 and confirm it's currently registered with the EU?”
Automated checkout VAT exemption
“A business customer entered the VAT number IT12345678901 at checkout to claim B2B tax exemption — can you verify it's valid in the VIES system and return their registered company details?”
Technical details
Endpoint
POSThttps://toolrail.dev/vat/validate?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need authoritative, real-time VAT validation against the official EU VIES registry — especially during B2B onboarding, invoicing, or tax-exempt checkout flows. Prefer this over format-only validation libraries when you need to confirm actual registration status, not just number structure. The built-in retry and caching layer makes it more reliable than calling VIES directly.
Side effects
- VAT number not found in VIES — may be unregistered or recently registered
- VIES system temporarily unavailable — service retries but may still fail
- Invalid country code provided — returns error
- Malformed VAT number format — returns validation error
- Country not part of EU VAT system — not supported
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| vatNumber | string | |
| countryCode | string |
Tags
x402
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