API = Application Programming Interface
By linking different programs, the API enables them to communicate with each other.
The Lengow API allows developers to access data stored in Lengow and query and act on this data by using pre-defined functionality and data format.
The Lengow API also allows communication between Lengow and the back office of an e-merchant so that they can receive orders and statistics, and even actions to be taken on the orders from the marketplace.
Here is the documentation of the Lengow API: http://docs.lengow.io/en/
