According to this older post (community.sdl.com/.../12213)
it should work with these two
For TM-Service: http://<server>:41235/docs/ui/index#/
I can access:
(gives me the possibllity to log in as per romulus video)
Why the port 41235 is not /documentation/api/index I cannot explain.
Maybe you give it a try what works for you.