VIES API for B2B Checkout

Validate EU VAT numbers through VIES, keep checkout moving when VIES is unavailable, and store proof for audit.

Get API keyRead the docs

Quick start

curl -X POST https://vatsignal.com/v1/vat/validate \
  -H "Authorization: Bearer vs_test_your_key" \
  -H "Content-Type: application/json" \
  -d '{"vat_number": "DE123456789"}'