When you say “Amazon”, there’s almost no description needed. However, Amazon Pay is a relatively “new kid”.
It was launched in 2007 as a payment solution that uses all the payment details stored in your Amazon account. It has evolved ever since, and today is a serious contender for the best payment tool on the market.
These days, you can tell Alexa to pay using Amazon Pay, no additional touch needed.
However, integrating the Amazon Pay payment gateway could prove a little complicated.