get https://pay.key2payment.com/V3/Banxa/getpaymentmethods
Retrieve all possible payment methods or filter the available by a fiat or coin code. The type of exchange is determined based on the codes provided to the source and target.
If the payment has a supported_agents field which is not null then there are limitations for accessing this payment by browser and operating system. To avoid the payment failing please block customers from accessing those payments from the wrong device