I don’t understand what you mean here, you need to pass the values in the request body to authenticate. Even it is cloud environment, you need to pass the values.
So, you need to retrieve the values from windows credential manager and then pass it to the body @saravana
But, there is no way to retrieve the machine credentials from windows credential manager. better to store them in config file or assets in orchestrator
The authentication endpoint is intended for Orchestrator’s local users, if you intend to use Windows Authentication, you must provide NTLM token in an Authorization header in which case you wouldn’t need to call this particular endpoint.