I try to integrate our test system with SagePay. But I've found lot of different apis and documentations for integration. I'm bit confused about it. Could you tell me which api version is most up to date and suits my needs?
I want to have recurring payment functionality without CVV resubmit. System will be designed to work on US market.
This api have functionality which I want and it's also mentioned in some answers on stackoverflow https://test.sagepay.com
This api is very easy to use, but I don't see recurring payment functionality (only with CVV resubmit) https://developer.sagepayments.com
There is another set of documents for integration, based on .vsp services www.sagepay.co.uk/support/integration-kits-protocols-document
I suppose some of those apis are legacy and are maintained for some old integrated systems. It would be great if documentation for those apis were gathered in one place and explained.
