vatverify

vatverify is a REST API for VAT validation and tax-rule decisions. It is aimed at developers, and its front page describes it as a way to validate VAT numbers, look up live registry data, and decide whether VAT should be charged on an order.

The service supports live registry lookups with real checksum algorithms, cached results, and a tax-rules engine at /v1/decide. The page lists MOD-11, MOD-97, and Luhn among its checksum methods and says those checks are implemented against the specification and covered by 54 dedicated checksum tests. Cached valid lookups last 30 days, invalid ones 24 hours, cache hits do not count toward quota, and cache=false can force a live lookup. The /v1/decide endpoint returns whether to charge VAT along with the legal basis, mechanism, invoice note, and the Directive article. It also offers webhooks for validation and batch events, with HMAC-SHA256 signatures and a durable queue with three automatic retries. A TypeScript SDK is described as strictly typed for every response shape, including registry-specific fields, and it works in both Node and Edge runtimes. Python and Rust clients are mentioned as being on the roadmap.

vatverify says it is wired directly to official registries and covers all 32 countries it lists, including the EU member states, the United Kingdom, Switzerland, Liechtenstein, Norway, and Northern Ireland. The page names VIES for the EU-27, HMRC for the United Kingdom, Swiss BFS for Switzerland and Liechtenstein, Brønnøysund for Norway, and BZSt for Germany. It also shows OpenAPI 3.1, curl, Node.js, and Python on the site, and includes example requests for both /v1/validate and /v1/decide. A test mode uses vtv_test_ keys and deterministic fixtures, with unlimited requests that do not hit the live registry.

Pricing is presented in tiers. A free plan includes 500 live validations per month, unlimited test-mode calls, 32 countries, and 30 requests per minute, and the page says no credit card is required. Paid plans are Starter, Pro, and Business, with higher monthly validation limits, more API keys or endpoints, higher request rates, support levels, and cancel-anytime billing. The site also states that no customer data is stored.