Finance API

VAT Verification API

Validate any EU VAT number live via the official VIES service of the European Commission. Returns company name and registered address where available.

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All 27 EU member states

Send country code + VAT number. Receive validation status, company name and address directly from VIES.

  • ✓ Valid / invalid status
  • ✓ Official company name
  • ✓ Registered address
  • ✓ All 27 EU member states
  • ✓ Verification date

Request

curl "https://api.omnizoek.nl/v1/finance/vat-verify?country_code=NL&vat_number=850458002B01" \
  -H "X-API-Key: omni_test_..."

Response

{
  "valid": true,
  "country_code": "NL",
  "vat_number": "850458002B01",
  "company_name": "Exact Software Nederland B.V.",
  "address": "Molengraaffsingel 33, 2629JD Delft",
  "request_date": "2026-03-13"
}

Use cases

🧾

Invoice processing

Automatically verify supplier VAT numbers when booking purchase invoices.

🤝

Customer onboarding

Validate VAT numbers directly in your sign-up form. Prevent fictitious companies in your CRM.

⚖️

KYC & compliance

Verify that business relations are registered, active EU entities.

🔄

Accounting software

Connect via Exact Online webhooks: automatically verify VAT numbers on every new relation.

1,000 free calls per month

No credit card required. Then €0.005 per call.

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