Would like to integrate the amazon pay in the application(US based). Already having paypal and pay by card option. When referred for amazon pay sandbox, it says to register in amazon pay first. The registration process is taken to amazon seller center account other steps where business related questions are asked.
In development point of view, how can we integrate the amazon pay to our application? Is there any sample api/code available and its procedures? Any guidance is appreciated.
The official documentation on developer.amazon.com is a good starting point for the integration. The following link points to the US version of the documentation and provides links for the integration into websites and Alexa skills:
https://developer.amazon.com/docs/amazon-pay/intro.html
It also provides links to additional developers resources such as API Reference Guides, SDKs and sample code: