How to implement a transfer from card to card between site users?

Question

Payment systems

Translation is carried out as a donation - one user of the site helps another directly.

And the problem is the following.

For example, Alfa-Bank has a page on the website where you can transfer from card to card - fill in the details of the sender's card, indicate the recipient's card number and submit. It seems to me that to solve the problem, you need the same thing, only working through the API. So that the user who wants to make a donation presses the "transfer" button, enters only his card data, and the recipient's card number is substituted in the code, and then a request is made to a remote service that implements and encapsulates the transfer mechanism.

Maybe there are solutions to this problem that work for other scenarios, but the main thing is to find a solution. At the moment it doesn't work at all. I hope for your help!