Bulk-check EU, UK and Northern Ireland VAT numbers, UK company numbers and LEIs. Free local checksum first, then official VIES, HMRC, Companies House and GLEIF lookups with name match, consultation numbers and a timestamped audit trail.
Local format and check-digit validation for VAT numbers from all 27 EU member states, GB and XI. It also validates UK company numbers (format and prefix) and LEIs (ISO 17442).
Official registry checks:
EU VIES REST API, with a member-state status pre-check and deferred retry rounds for outages
HMRC "Check a UK VAT number" v2.0, using the user's OAuth client credentials
Companies House, using the user's API key
GLEIF
VIES consultation numbers (request identifier) and HMRC consultation numbers when the user supplies their own VAT number.
A fuzzy name match score (0-100) against the user-supplied name, plus VIES approximate matching.
Dedupe, in-run caching, a timestamped evidence record with SHA-256 per registry answer, and resumable runs.
Pay-per-event pricing: vat-checked and format-checked. Errors and unavailable results are never charged.