The technology that allows disparate systems to communicate and share data is called an API (Application Programming Interface). APIs serve as intermediaries that define protocols for interaction between software applications, enabling them to exchange information seamlessly. They play a crucial role in modern software development, facilitating integration and functionality across various platforms. By providing standardized methods for accessing data and services, APIs can enhance the overall ecosystem of applications while fostering innovation. This interconnectivity supports the development of complex systems that rely on multiple services working together efficiently.