In order to use our auth.net emulator, set the endpoint URL to https://x1.cardknox.com/authorize

The credentials you receive need to be split in half: Use your Cardknox key as the login ID in the first half, and the transaction key in the second half.  

API Login ID (x_login): First half of credential

Transaction Key (x_tran_key): Second half of credential

NOTE: The emulator only supports the Authorize.net AIM integration method.