Hey John,
Great question! Think of an API endpoint like a specific door or address on a building. The building is the API itself, and each endpoint is a unique URL that your application can access to perform a specific action or retrieve specific data.
For example, in a typical REST API for a blog:
/api/posts might be an endpoint to get a list of all blog posts.
/api/posts/{id} might be an endpoint to get a single blog post by its ID.
/api/users might be an endpoint to get a list of users.
The method you use (GET, POST, PUT, DELETE) also dictates what happens at that endpoint. For REST APIs, endpoints are usually resource-based and use standard HTTP methods.