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Abstract VAT Validation vs GOV.UK Pay API

If you need a Finance API that's easy to integrate, go with Abstract VAT Validation.

Abstract VAT Validation

Validate VAT numbers and calculate VAT rates

GOV.UK Pay API

GOV.UK Pay API (This version is no longer maintained. See openapi/publicapi_spec.json for latest API specification)

Abstract VAT Validation

  • Simple API key authentication
  • HTTPS supported
  • CORS enabled for frontend use

GOV.UK Pay API

  • Simple API key authentication
  • HTTPS supported
FeatureAbstract VAT ValidationGOV.UK Pay API
AuthenticationapiKeyapiKey
HTTPSYesYes
CORSYesUnknown

When to use which?

Abstract VAT Validation works directly from the browser with CORS enabled, making it better for frontend-only apps.