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Application Programming Interface (API)

An application programming interface is a set of rules and tools that allows different software systems to communicate with each other. It defines how applications request data or services and how those requests are processed and returned. APIs are widely used to connect apps, platforms, and services, making it easier to integrate features like payments, maps, AI models, or user authentication. In AI and automation, APIs enable developers to access models, datasets, and system functions without building everything from scratch. They are a core building block of modern software ecosystems.