http://www.textmagic.com/app/pages/en/products/bulk-sms-gateway-api
Bulk SMS Gateway API: Integrate Text Messaging Into Your Applications!
Connect to TextMagic’s Bulk SMS Gateway using our HTTP SMS API or Email to SMS services.
TextMagic’s Bulk SMS Gateway API allows application developers to send text messages to more than 700 global mobile networks.
You can integrate bulk SMS messaging services into your applications, websites, software and back-office custom apps. With our HTTP SMS API, it’s quick and easy. If you don’t want to spend time and money writing code, use our ready-made SMS scripts FREE. Available in PHP, Ruby, Java, Perl and Python.