title: Where can I get amazon API for category list
body: <p>I want the category hierarchy of the amazon site. I need to extract all the category, sub category, sub sub category up to least level.</p>
  
  <p>I need to develop discount finder of amazon , for that i want api of amazon , which can give me complete list of product category and sub category..</p>
  
  <p>To build something like <a href="http://www.moneysavingexpert.com/shopping/cheap-amazon-loopholes" rel="nofollow noreferrer">this</a></p>