Task is selling electronic content. Working mode like this: the User clicks the "want to buy" processada means of the aggregator, while paying a purchase anything, the aggregator informs us that the purchase of paid-up (callback url or something like that), we send link to download. (of course not direct, and, say, a protected number of cases, it's already not the case).
Well, or displayed on the same page — does not matter.
It's not really an e-shop. Theoretically it could even be one static page and set "bezhevyj" scripts on the server.
robokassa not seem to be able to accept PayPal.
Ran across a great foreign stuff like playspan (even with that had to work) and payment wall but a bit off-putting the focus on games/apps. With "gold" or just "credits", packages offers and other.
I would like something simpler.
Again the list: at least Webmoney, Yandex Money, Visa/Mastercard and PayPal