VATFix Plus

VATFix Plus is a fallback EU VAT validation API for when VIES goes down. Built for Stripe-first integrations with instant checks, 12h cache, and 99.9% uptime. Validate EU VAT numbers at checkout, invoicing, or CRM flows. Simple JSON: POST /vat/lookup with x-api-key and x-customer-email headers. Errors: 401/403/429. Billing via Stripe; rotate keys with POST /reset.