#API

An application programming interface (API) key is a unique code used by an API to identify the application or user making the request. API keys are used to track and control who uses an API and how they use it, as well as to authenticate and authorize applications, similar to how usernames and passwords work. An API key can be a single key or a set of keys. Users should follow best practices to improve their overall security against API key theft and avoid the consequences of API key compromise.