Your Product Advertising API Account
To access the Product Advertising API, you must first create an account at http://aws.amazon.com. An AWS account is simply an Amazon.com account that is enabled to use AWS products; you can use an existing Amazon.com account login and password when creating the AWS account.
Alternately, you could create a new AWS-enabled Amazon.com account by using a new Amazon.com login and password. The e-mail address you provide as the account login must be valid. You'll be asked to provide a credit card or other payment method to cover the charges for any AWS products you use.
From your AWS account you can view your AWS account activity, view usage reports, and manage your AWS account access identifiers.