API usage is limited to 2000 calls per hour, and requires the creation of an API user. You can create API users by logging into your account and going to the My account area. Please note that these APIs always use UTC dates and times.
We recommend using version 2.0 beta of the API as it contains the most recent functionality. However, if you'd prefer to use the last full release, the SOAP-based version 1.0 is still available.
API version 1 (SOAP only).