1. An API is a set of programming instructions and standards for accessing web-based software. Companies release their APIs to the public so that other software developers can design products powered by their platform.

Get Return On Influence: The Revolutionary Power of Klout, Social Scoring, and Influence Marketing now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.