The VendorFuel API provides several services that are often used on the front end templates:
For organizing various alerts.
Google Analytics integration.
Service for user authentication and local storage of authentication information.
Service for cart and checkout functionality.
Factory for collections functionality.
Service for managing data.
Service for error handling.
Service for cart favorites.
Service for group functionality.
Service for Punchout functionality.
Factory for product functionality.
Service for all user data and functionality.
Service for miscellaneous functionality.