The Splitit Help Center

How to obtain your Fidelity (CardKnox) credentials

Please view the Gateway instructions below:


Technical connection between your Fidelity CardKnox Gateway and the Splitit portal.


To communicate with the CardKnox API you will need to enter the following credentials into the Splitit portal:

  • API Transaction Key- system-generated Transaction Key.

To retrieve your credentials:

  1. Log in to your CardKnox account
  2. Go to Settings
  3. Go to Keys
  4. Click on Create a Key



  1. Go to Create and View


Finalize the process:

Add the credentials into your Merchant Portal under the ‘Credentials’ section.



For any additional assistance please contact your personal Onboarding Manager or the Onboarding Team at [email protected] 

Contact and more information:

Platform CardKnox Customer Support 

Merchant operates and support: (844) 227-3566

Splitit Customer Support 



CardKnox’s technical guide

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