I want to have specific information from amazon like product name and description! Is it legal to crawl amazon. or Is amazon is providing any api for getting its data paid or nonpaid both
Amazon's "Product Advertising API" allows this. You should closely read the license agreement as its highly restrictive as to what they allow you to do with it.
来源：https://stackoverflow.com/questions/11080584/is-it-legal-to-crawl-amazon