Amazon E-Commerce Service (ECS) operations give you access to much of the information available on Amazon's Web site. The operations are classified below by the type of information you can search for and look up using ECS.
ECS operations generally fall into two categories. Search operations, whose names end in "Search," allow you to query an Amazon Web site for content or data using keywords, titles, creator names, or other information. Lookup operations, whose names end in "Lookup," allow you to request content or data keyed by an ID such as an ASIN (Amazon Standard Item Number), a UPC (Universal Product Code), a wish list ID, or a seller ID.
For example, if you wanted to find all of the products containing the title word Bioinformatics, you would use ItemSearch. On the other hand, if you had the ASIN for the book "Beginning Perl for Bioinformatics," which happens to be 0596000804, you would use ItemLookup to request information about this product.
Note:
Amazon provides a reporting operation through the Amazon Web Services (AWS) Management Service to allow you to find out how many requests have been sent to Amazon through your AWS subscription ID. Please see the AWS Management Service online documentation for more information about this reporting functionality.