Abstract VAT Validation vs Notification Configuration 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
Notification Configuration API
This API is used for the classic integration. If you are just starting your implementation, refer to our [new integration guide](https://docs.adyen.com/marketplaces-and-platforms) instead. The Not...
Abstract VAT Validation
- Simple API key authentication
- HTTPS supported
- CORS enabled for frontend use
Notification Configuration API
- Simple API key authentication
- HTTPS supported
| Feature | Abstract VAT Validation | Notification Configuration API |
|---|---|---|
| Authentication | apiKey | apiKey |
| HTTPS | Yes | Yes |
| CORS | Yes | Unknown |
When to use which?
Abstract VAT Validation works directly from the browser with CORS enabled, making it better for frontend-only apps.