3. After you create a project app that uses X-Pay Token (for example the CyberSource API uses X-Pay Token), go to the Dashboard and click on the project app you have created.
4. Once you are in the project, navigate to the left side menu and click on "Credentials". Then under the "Inbound and Authentication Keys" section click on the "API Key" drop down arrow and you will see the API Key and Shared Secret.
How to Get Client Certificate File, Certificate File and Private Key