The term “API gateway” signifies a crucial component in microservices architecture. An API gateway acts as a single entry point for clients to interact with multiple backend services. It facilitates request routing, composition, and protocol translation while managing responsibilities such as security and rate limiting. By centralizing these functions, an API gateway enhances efficiency, simplifies client interactions, and allows for better scalability and maintainability of microservices. It is instrumental in enabling diverse applications to connect with backend systems seamlessly.