Abstract API (VAT Validation & Rates)

Overview

Abstract API Inc. offers a VAT Validation & Rates API as one of a family of developer APIs^[18]. It states full European Union coverage for validation and says it relies primarily on the European Commission’s VIES system, supplemented with additional data and validation^[18]. VAT rates are available for non-EU countries that use VAT^[18].

The sample response contains the VAT number, a validity flag and company name, address, country and country code^[18]; in the published sample the country and country code values appear swapped, so integrators should rely on the full documentation. The Standard plan costs $99 a month billed annually and includes 60,000 requests at three requests per second, although the page labels this quota both per month and per year in different places^[18]. Enterprise adds a 99.99% uptime SLA, SSO and an account manager^[18].

The API does not cover GB numbers, consultation numbers are not documented, and the entry price is high for a VIES wrapper compared with vatcheckapi or vatlayer.

Abstract API (VAT Validation & Rates) features

• EU VAT number validation via VIES
• Company name and address in response
• VAT rates incl. non-EU countries
• 99.99% SLA on Enterprise

Abstract API (VAT Validation & Rates) pricing

Free: 100 requests, 1 request/second. Standard: $99/month billed annually, 60,000 requests, 3 requests/second. Enterprise: custom. Currency code not stated.

Abstract API (VAT Validation & Rates) strengths and limitations

Appears in

• Best VAT Number Checkers and Validation Tools in 2026 #11

Abstract API (VAT Validation & Rates) alternatives and competitors

Alternatives to Abstract API (VAT Validation & Rates): companies ranked in the same lists.

• VIVIES (VAT Information Exchange System)
• HMRC Check a UK VAT number
• Brønnøysund Register Centre (Enhetsregisteret)
• SUSwiss UID register
• VAT Sense
• Vatstack
• MonitorPay
• LLookuptax
• Fonoa
• vatcheckapi
• VVATcomply
• VATFind