For Developers – Marketplace Web Service
Amazon Marketplace Web Service (Amazon MWS) is an integrated Web service API that helps Amazon sellers to programmatically exchange data on listings, orders, payments, reports, and more. By using Amazon MWS, sellers can increase selling efficiency, reduce labour requirements, and improve response time to customers.
You can sign up for MWS and find all surrounding information on http://developer.amazonservices.co.uk/