In order to place your first request with the Purchase API, it is required to setup your account and generate the required values. Note that the links below will not be available to you until your account is enabled for Purchase API use.
1. Generate your API key
Visit Manage API Keys and click "Generate New Key", this will produce a pair of keys that can be used to authenticate with the API. Multiple sets of keys can be generated and used simultaneously.
2. Save your payment information
If you don't already, make sure you have a credit card entered at Credit Card Management
Visit API Payment Methods to generate a token for your credit card, this is passed with each order request to indicate how you will pay for the order.