Simple base APIs for Amazon, Google, EBay, Alibaba Shops

I need Simple base APIs for Amazon, Google, EBay, Facebook Shops in python. I dont have vendor sandbox and the user will have to help me with it. Please see file attached for an example. I have attached python class which needs basic functions of a shop apis to be created. main. py should call all the base API to demonstrate usage that is all. No UI, app nothing. It should not be complex and all python class apis should have same functions as in the python class provided. The class should have CRUD operation (client, shop, catelog, product, order, payment) functions for Amazon, Facebook, Google, Ebay