VATComply.com

Provides VAT number validation, EU VAT rates, foreign exchange rates, IP geolocation, IBAN validation, and country/currency data via a REST API.

The VATComply.com API uses none authentication; has free pricing; offers a free tier (Entirely free, no authentication required); rate limits: 2 requests per second per IP address. Verified 2026-07-12 with per-field source links.