If you do not have SSH access to your server, fear not! You can still run composer and download the SDK. Here's how...
Linux / Mac OSX:
PHP is typically installed by default, consult your distribution documentation. Instructions from getcomposer.org.
Windows:
PHP must be installed on your computer, download. Instructions from getcomposer.org.
Be sure to visit the Mailgun official documentation website for additional information about our API.
If you find a bug, please submit the issue in Github directly. Mailgun-PHP Issues
As always, if you need additional assistance, drop us a note at support@mailgun.com.