These are chat archives for Payum/Payum
PHP 5.5+ Payment processing library. It offers everything you need to work with payments. From simplest use cases to very advanced ones.
@davidfuhr is absolutely right if you need a new gateway you first have to create payum extension (nothing to do with sylius). if you do everything right It works with Sylius without any changes there (except the configuration)
If you do not find a gateway among already supported you create your own. payum/skeleton may help you a lot