Some of our partner platforms require use of their billing APIs in order to charge merchants for usage of your app. The payments are then subsequently disbursed to your account, minus the platforms marketplace fee.
Not all platforms are supported. Be sure to check if the platform is supported before sending a request. If the platform is not supported, you must handle the charge on yourself e.g. using your own stripe integration.
Some platforms require that you use their billing flow to charge users. If you don't, your app might not be approved!
Billing API Supported