Write some Software for Linio Market place to connect with magento via API

Hi, we need to synchronize Magento with another Marketplace via API, to manage invetory content, import, creation, updates content+price+ qty, delete content, orders notifications. you will find the documentation here: [login to view URL] please dont bid before reading the documents. no money will be release before fully testing the function. there support will provide all the help needed to set the API connection. any question please ask. Thanks