I'm sorry @Anonymous, my first reply is probably not what you were actually asking for.
If I understand correctly, you want to use Power Automate to set up a process that can be triggered by a GET request and will respond with data about employees saved in a SharePoint list.
You could achieve this by using the "When a HTTP request is received" trigger. You will have to set the "method" to "GET".
In your flow, you can retrieve an array of say employees from your SharePoint list.
Using the "Response" action, you can send a response to the caller of your flow including the desired information:
