Hi, i wanted some one who could explain me in simple and easy manner that can i use/create API's or widgets for my products? i am Affiliate head of a logo design company (featured exclusively at SAS) and that has static (mostly) products with constant price. Some times my company offer special seasonal offer but mostly it remains the same. My question is i need to know should i have to create Merchant API's and widgets to make my program more successful? if yes then how it will benifit me?

I heared that API's and widgets for a site like Amazon, Ebay or an online shopping brand label.... is that true?

am Sickn' confused