How to find endpoint on local host

Hi, 

I would like to test some subroutines/endpoints on my local machine. I have a local indicium, and I use Universal gui to test my branch directly this way. 

When I use Postman to get/post something I tried things like 

" local host/indicium/24852/create_new_project ”

Where the number is de App id from the runtime config. 

However, Postman doesn't find a thing. 

How can I test this locally? 

Thanks!! 

Alexander