The endpoint of an application is simply a unique URL that represents an object or collection of objects. In HTTP Request or REST API endpoint typically refers to the URL for a single resource or operation. It is sometimes referred to in combination with the HTTP method used to access the URL.
Basically, it's the URL you access to get some data or take an action. The endpoint (or route) is the url you request for, while searching in google. Endpoint is the URL where your service can be accessed by a client application. The single web service can have multiple endpoints.
Endpoint Syntax: Base URL/URI + Resources + Parameters
Endpoint Example: https://programsbuzz.com/search/node?keys=rest+assured
Base URL: https://programsbuzz.com