Abstract VAT Validation vs Account and Transaction API Specification - UK
Head-to-head comparison of two Finance APIs.
Abstract VAT Validation
Validate VAT numbers and calculate VAT rates
Account and Transaction API Specification - UK
## Functionality at a glance The NBG "UK OPB - Account and Transaction v3.1.5" API follows the [UK Open Banking Specification v3.1.5](https://openbankinguk.github.io/read-write-api-site3/v3...
| Feature | Abstract VAT Validation | Account and Transaction API Specification - UK |
|---|---|---|
| Authentication | apiKey | apiKey |
| HTTPS | Yes | Yes |
| CORS | Yes | Unknown |