Application programming interfaces (APIs) make the modern digital world go round. They are what bring maps to your fitness-tracking app, login authentication to your banking app, and customer service communications to your favorite ecommerce app. APIs are the glue that holds most software together in 2021.
The benefits of APIs in modern software development are manifold, but at a top level they help power the shift from monolithic on-premises software to the cloud and microservices-based applications. Smaller, function-based components are easier to maintain, with individual developers or teams assuming responsibility for a specific part.