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44API

VAT validation API for 53 countries.

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44API is a VAT validation API that covers 53 countries through a single endpoint. It performs real-time validation against official tax registries (VIES, HMRC, ABR, NZBN, etc.) and format/checksum checks for 17 additional countries. The service returns company name, address, and registration status. It offers a free tier of 250 requests per month, paid plans starting at €9/month, and enterprise options. It integrates with Zapier and provides IP whitelisting, webhook events, and 7-day smart caching.

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