Rubook allows you to work with Google Contacts from Mutt.
git clone git://github.com/malclocke/rubook.git gem install gdata mail cp sample_rubook.yml ~/.rubook.yml
Add the following to your ~/.muttrc
set query_command="/path/to/rubook '%s'" macro index a |'/path/to/rubook add'\n macro pager a |'/path/to/rubook add'\n
You should now be able to type part of an address or name into the ‘To:’ field when composing a message and have it autocomplete from your Google contacts by typing ctrl+t
In the pager or index view, you can add the sender of the current message to your Google contacts by typing ‘a’.