Next, click the Add User button at the top of the screen
Next, complete the required fields, then click Save & Close.
NOTE: Access Level must be set to "Administrator" or "Technician" to grant API access. View Only users do not have API access.
Click the Account link, then click "/Account/CallPlans" GET link:
Next, click the red exclamation point next to the "Try it out!" button:
Next, enter your Username and Password in the login prompt:
Next, click "Try it out!" button: