The Real-time Data API is a collection of API calls that provide access to "real-time" data on the platform. This API can be used to create custom dashboards and control panels, and to provide information about Agents and Skills (leaderboards, etc.).
To use any of the NICE CXone APIs in your application, you must have an API authentication token from the token service. See the Getting Started tutorial for information on what type of token is needed for your application and how to get an API Authentication Token.