Unfortunately, I think that any mercurial repository left on bitbucket has been wiped. Bitbucket decided a while ago to discontinue mercurial support. I don't have a local copy of it either.
Depending on your use case, maybe you'd be helped by using the cli options in the socket plugin instead? There are a few examples on how to use the command line to ask a running MH instance to perform certain operations here:
https://github.com/makehumancommunity/c ... master/cliThe commands available can be found in the __init__ method of each operations class, such as
https://github.com/makehumancommunity/c ... meshops.py where you can get access to the vertex data of the current character.
This is pretty crude and chances are it won't be enough out of the box. But the command line branch for MH was pretty crude too.