If you only have one unit of goods, it is best to use a payment form.
Yandex's like this:
https://money.yandex.ru/quickpay/
At PayPal not know where to look, but also a form to receive payment.
And all aggregators must be your API, which you can use all this to process.
I will be glad if you tell me. - jayson_Pfeff commented on April 19th 20 at 12:36