An Application Programming Interface (API) is a set of instructions enabling software to communicate and interact with other software, facilitating tasks like information exchange and event initiation. Widely used in mobile app development, website connectivity, and third-party integrations, APIs allow businesses to provide external access to their services, such as Google Maps or Facebook login, streamlining development and improving user experiences. Major companies like Google, Facebook, Amazon, and Apple offer APIs for various purposes, enhancing software functionality while reducing development costs and time. API architecture typically consists of a customer, server, and mediator, providing seamless integration, increased productivity, easier maintenance, reduced expenses, and an enhanced customer experience.
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