API

An API (Application Programming Interface) is a set of rules and protocols that allows different software applications to communicate with each other. In web development, APIs are used to connect websites with external services such as payment gateways, CRM systems, email marketing tools, and social media platforms. WordPress has its own REST API that allows developers to access and manipulate WordPress data from external applications. Shopify also exposes APIs that allow custom apps and third-party integrations to interact with store data including products, orders, and customers.