Description: API gateway caching is a mechanism that allows temporarily storing the responses of requests made through an API. This process is fundamental for improving the performance and efficiency of applications that rely on external services. Storing responses in cache reduces latency, as it avoids the need to make repeated requests to backend servers, which can be costly in terms of time and resources. Additionally, caching helps to decrease the load on servers, allowing them to handle a higher volume of simultaneous requests. Key features of API gateway caching include the ability to define expiration policies, which determine how long responses are stored before being considered stale, and the ability to invalidate the cache manually or automatically based on certain events. This approach not only optimizes performance but also enhances user experience by providing faster and more efficient responses. In environments where applications are increasingly interdependent and communicate through multiple APIs, API gateway caching has become an essential tool for ensuring scalability and operational speed.