Amazon API Gateway

Amazon API Gateway is a fully managed service that lets developers create, publish, maintain, monitor, and secure HTTP, REST, and WebSocket APIs. It acts as a front‑door for applications to reach backend services, handling traffic management, CORS, authorization, throttling, monitoring, and version control. The service supports containerized, serverless, and web workloads, and offers developer portals for centralized discovery, documentation, and governance of APIs across an AWS environment.

The platform enables efficient API development by allowing multiple versions of an API to run concurrently, facilitating rapid iteration and testing. WebSocket APIs provide persistent, real‑time two‑way communication for use cases such as chat applications and streaming dashboards. RESTful APIs can be built for serverless or HTTP backends, with HTTP APIs offering lightweight proxy functionality.

Pricing is usage‑based with no minimum fees; customers are charged for the number of API calls and data transferred out, and a tiered model reduces cost as usage scales. The service is positioned for developers who need scalable, secure API management without managing underlying infrastructure.