SOAP (Simple Object Access Protocol) lets third-party developers use Amazon E-Commerce Service (ECS) by making remote procedure calls. This information is encoded using XML (Extensible Markup Language), although this is transparent to you in the course of normal usage. ECS publishes a Web Services Description Language (WSDL) document that defines all the available ECS APIs, their parameters, and the data that they return (see WSDL Location for more information about the ECS WSDL).
For Amazon.com (US) data
http://webservices.amazon.com/onca/soap?Service=AWSECommerceService
For Amazon.co.uk (UK) data
http://webservices.amazon.co.uk/onca/soap?Service=AWSECommerceService
For Amazon.de (DE) data
http://webservices.amazon.de/onca/soap?Service=AWSECommerceService
For Amazon.co.jp (JP) data
http://webservices.amazon.co.jp/onca/soap?Service=AWSECommerceService
For Amazon.fr (FR) data
http://webservices.amazon.fr/onca/soap?Service=AWSECommerceService
For Amazon.ca (CA) data
http://webservices.amazon.ca/onca/soap?Service=AWSECommerceService