An endpoint is a specific URL where an API can be accessed by a client application. Think of it as the address where your application goes to interact with a particular service or piece of data. When your app needs to retrieve information, send data, or perform a task, it communicates with the API through these endpoints. Each endpoint is designed for a specific function within the API, ensuring that your requests are directed precisely where they need to go, allowing for efficient and reliable communication between your app and the API.