Application programming interface key
|This article does not cite any sources. (September 2015) (Learn how and when to remove this template message)|
An application programming interface key (API key) is a code passed in by computer programs calling an application programming interface (API) to identify the calling program, its developer, or its user to the Web site. API keys are used to track and control how the API is being used, for example to prevent malicious use or abuse of the API (as defined perhaps by terms of service).
The API key often acts as both a unique identifier and a secret token for authentication, and will generally have a set of access rights on the API associated with it.
API keys can be based on the universally unique identifier (UUID) system to ensure they will be unique to each user.
|This computer-programming-related article is a stub. You can help Wikipedia by expanding it.|