Download of gcontacts-backup 1.2 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. Gcontacts-backup for Mac lies within System Tools, more precisely Backup & Restore. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. This free Mac app is a product of Alexandre Touret.
From the developer:
This project aims to provide a command line tool which provides a simple and easy way to backup Google contacts. The application currently exports the following data for each contact: full name, phone numbers, email addresses. On this first release, datas are exported only on a xml document.
You may want to check out more software for Mac, such as iSauvegardes or HomeSync Lite, which might be related to gcontacts-backup.