Documentation > Personalization > API reference > API reference API reference¶ This section provides documentation for the Personalization API operations. Tracking API Allows to track items using it ID. It covers many Content Types with the same ID configured for tracking. Content API Personalization server can use external information about the items. Use HTTP methods to create, update or get items from the data store. Recommendation API Use HTTP GET request method to render recommendations. User API Use HTTP methods to correlate metadata with user data and combine users into clusters of certain type.