The Data API tools allows you generate and test API keys in a sandbox environment.
To see the API Credentials simply click on the “Show” button.
If you have previously not "Generated" the API Credentials, click the “Generate” button.
Within the Build Request Panel you can test the API. You can go ahead and select your website, zone and the "Send Request".
In the Request Info window you will see all the details to help you debug.
The Response Info window will show you the end result and indicate the API is working correctly.