list available repos on server?

[knubee]

in our project, different team members create different repos on the server:

/projects/repo1/
/projects/repo2/
/projects/???/

and, at different times, different members may need to check out a repo, work
with it, etc. 

is there a straight-forward way for a team-member to use the command line to get
a listing of available repos on the server? (assume that team members have
authorization, etc. the main goal is for a team member to see what is available
-- and the correct url. assuming that all repos are added to "/projects/" above).

thanks. k.