Can someone explain to me API's

Question

it's uses,how it is created etc

Answer 1

An API is a common interface that two programs communicate with. For example, if you had a website (website1) and wanted to communicate with another website (website2), how would you do that? The answer is an API. Website2 would create an API with common interfaces that website1 would access. If you wanted to send information to website2, website2 could create an endpoint called "send" that would take any information posted to "send" and do something with it. Now website1 could post information to "send" and website2 would receive that information and do something with it. An API is simply a common language both parties speak.