Technology
API (Application Programming Interface)
Application Programming Interface: a standardized way for different software systems to communicate and exchange data. APIs define what requests a system will accept and what responses it will return.
Biological Context
APIs function like cell membrane receptors or chemical signaling molecules. They enable controlled exchange between systems while maintaining boundaries. Without standardized interfaces, systems cannot cooperate.
Business Application
APIs enable platform business models, allowing third parties to build on your infrastructure. Companies like Stripe, Twilio, and AWS grew by providing APIs that other businesses could integrate.