Asanka Abeysinghe discusses how APIs are the foundation for digital transformation. He explains that APIs allow for real-time personalized experiences across applications, platforms, and networks. A top-down approach to API design defines the user experience first and then identifies the necessary APIs and services. This modular approach to APIs allows for reuse, integration, and iterative development. When done right, APIs can act as the connective tissue across people, applications, platforms, and networks, fueling digital experiences and powering today's connected world.