Sellsy is an online business platform. Sellsy combines multiple tools for running a business that are usually spread across various applications. Some example features of Sellsy include contact and relationship management, invoicing, timetracking, and point-of-sale services.
The Sellsy API allows developers to access and integrate the functionality of Sellsy with other applications. Some example API methods include accessing contacts, retrieving accounting information, and managing point-of-sale functions.