How Often Do You Feed Your Puffer? in the Puffers forums, part of the Freshwater Fish Forums category.
For other uses, see API (disambiguation). In computer programming, an Application Programming Interface (API) is a set of subroutine definitions, protocols, and tools for building application software. In general terms, it is a set of clearly defined methods of communication between various software components.
Application Programming Interface - API. DEFINITION of 'Application Programming Interface - API'. An interface or go-between that enables a software program to interact with other software. In the context of forex trading, an API refers to the interface or platform that enables your platform to connect with the market. APIs have multiple features that facilitate information sharing, including real-time forex price quotations, trade execution and order and trade confirmations.