The latest documentation is available for download here.
Please note that to use the API, you will require an API Key and an invite from one of our Data suppliers. Please contact us if you require access and do not have an API Key.
In order to access the service, you will require lists of the valid Destination parameters for the service (the 'Destination Tree'). This list is specific to each supplier, and should have been provided to you by your account manager on sign up to the service. Please contact us using the 'Ask Us' link at the top of the page if you have not received this information.