System for accepting electronic payments with API?

Question

PHP

Good afternoon. Please tell me who knows what system for accepting electronic payments with API for an online store.
Interested in:
- the client links the store's personal account account to his account in the electronic payment system
- so that the client can see the amount of money in the EPS through the store's personal account
- pay for the goods with automatic debiting from his EPS account to the account of the EPS store
- so that the store manager in case return of the goods could transfer money or part of the money to the client’s account;
in general, all currency transactions must take place inside the store so that the client does not have to enter the payment system

Answer 1

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