Authentication token is necessary to communicate if we need to communicate with CSO database using APIs .
This article explains how to get the auth token using browser development tools
Open the developer tools in a browser. Go to settings > more tools > developer tools:
Login to the CSO UI page using the same browser. Once logged in, go to any of the tabs inside the UI.
Check any of the APIs calls happened during that time and check in the requested headers. You will get the Auth token which can be used in the POSTMAN API calls