API - Application Programming Interface. REST API - Representational State Transfer API. SERVER: the place has the resources. Client call (API call) -> Server - Data back over HTTP protocol. API Key - interface to identify its user, developer or calling program to a website, which is normally used to assist in tracking and controlling how the interface is being utilized.
Post: Create
Get: Read
Put: Update
Delete: Delete
/Resource/ {Required parameter} (Optional parameter) API Key