API-based commerce or API-based digital commerce refers to a flexible e-commerce approach where the front end (user interface) and back end (business logic) are decoupled and communicate via APIs. This architecture allows businesses to create customized front ends, integrate with various platforms, and scale across multiple touchpoints (e.g., web, mobile, in-store). API-based commerce enables rapid innovation, faster performance, and agility to meet changing customer needs, making it a future-proof solution for businesses looking to offer a seamless, personalized customer experience across all channels.