By default, when using the List API, the service that your API key is configured for is automatically run to completion, and you will receive and be charged for the results. You can use the optional action=report parameter when submitting your list to only get a match report without receiving data. This works for all of AtData's services except for SafeToSend.

To acquire the results of a service after reviewing the match report from the Check List Status endpoint, you can utilize the Purchase List Results endpoint.