An endpoint is a specific URL or entry point in an API where a client sends a request to perform an action or retrieve data. Each endpoint corresponds to a resource or operation the server exposes. Endpoints typically define accepted HTTP methods such as GET, POST, PUT, or DELETE. Clients call endpoints to fetch lists, create records, authenticate users, or trigger workflows. Clear and consistent endpoint design makes APIs easier to learn and maintain. Endpoints form the public contract between a client and a backend service.
key characteristics
Endpoints often require authentication through tokens, sessions, or API keys. They frequently return structured data in formats like JSON. Good endpoint design reflects resource structures, using patterns such as /users or /users/{id}. Validation logic ensures that endpoint inputs are safe before calling internal code. Endpoints run on servers that route requests to the appropriate handlers. When designing systems with AI, it helps to describe endpoints before generating backend code so the AI can follow predictable patterns.