The Amasty team just announced the opening of the official Amasty repository for Magento 2 extensions. However, Magento 1 modules are not available there.
As many of their customers have been asking for this option, Amasty finally decided to make this move. Now, you can install their Magento 2 extensions with the help of the Composer. You will find the required access keys in your Amasty account. Please check out the Composer PDF user guide for detailed instructions.
For advanced users, it’s a new fast and hassle-free option to install and update extensions via the command line.