Read the License
To read the IP License governing your use of the Product Advertising API, go to the Associates Program Operating Agreement IP License link for your locale:
The terms and conditions for each locale apply to any use of the Product Advertising API in that locale.
Review the Best Programming Practices to make sure your application is compliant, scalable, and efficient.
In addition to the Product Advertising API License Agreement, be sure to read your locale's Associates Program Operating Agreement for information about usage guidelines, policies, and requirements.