N/A

Your question doesn't entirely make sense. What do you mean "the other two can speedup if they can coordinate locally"?

The way I'm interpreting your question is you want to have one api public facing, then two that only communicate with each other/the public api.

I mean i have 3 api 1 is the main other 2 just help it for other task ,is it possible they can work with local host ?

Yes the other two only interact with the main

No, when you host multiple services, they are not on the same localhost

However, you can use the private network instead

How i can access?

Take a read through the docs
https://docs.railway.com/reference/private-networking

Thank you

Will this work with Google oauth?

Google oauth should not factor in here

Tnx for the help

No problem, labelling this as solved now. Feel free to open another thread if you have issues

!s