Developer Reference Guide Application Programming Interface (API) The backbone of modern software integration. Learn how systems communicate and discover the best accounting APIs for the APAC region. An Application Programming Interface (API) is a set of rules, protocols, and tools that allows different software applications to communicate with each other. It defines how software components should interact, making it easier for developers to use the functionality of another application, service, or platform without needing to understand its internal code. Key Points About APIs 🔗 Bridge Between Systems APIs act like a messenger — taking a request from one software system, telling another system what to do, and returning the response. ♻️ Reusable Functions Instead of writing functions from scratch, developers can use APIs to access predefined functions like payment...