Companion App -> Settings
#1 -> Settings - To Verify or update the Companion App settings click on the settings Icon
#2 -> Root url (API URL) - This url should be same as the API URL which you can get from PulseID Admin -> Configuration -> Settings -> General Tab -> API Path
#3 -> Api key (API KEY) - This is a unique secrete key used for the API Calls (GET, POST). You can get this from PulseID Admin -> Configuration -> Settings -> General Tab -> Api Key
Also make sure if you are using the IP or the domain/server name to access the companion app then the host url should be added to the "Allowed Origins" on the PulseID Admin as shown below.
Just add the http://localhost or http://<ip address> or http://<domain/server name>. Do not include any "/" after the host urls.