PHP
SMS-API - (Rating: 4.11/5 from Hotscripts.com)
This class sends SMS messages via the Clickatell gateway and provides support to authenticate to this service
and also query the current account balance. This class uses the fopen or CURL module to communicate with
the gateway via the Clickatell HTTP/S API. A full package is available including a test form, initlization
script and latest sms-api class.
http://sourceforge.net/projects/sms-api/
Clickapi
This is a collection of classes for providing access to multiple Clickatell services using a web services API and very common helper libraries for ease of use. You can use either use the Clickatell XML API
(over HTTP) or the Clickatell SMTP API.
http://www.phpclasses.org/browse/package/2014.html
Clickatell SMS PEAR package (Reusable PHP component)
This PEAR package provides SMS functionality and access to the Clickatell gateway via the Clickatell HTTP API.
http://www.powertrip.co.za/PEAR/SMS_Clickatell
Java
SMSJ- SMS library for the Java platform
This library allows you to send SMS (GSM) from the Java platform. It gives you full
control over the SMS message including the UDH field so you can create and send EMS messages, WAP
push messages and Nokia smart messages (picture, ringtone etc). The API can send SMS via
a GSM phone connected to the serial port or via a SMS gateway like Clickatell.
http://smsj.sourceforge.net
Python
A python library for Clickatell is available here:
http://www.powertrip.co.za/code/python/clickatell.py
Ruby
A Ruby library for Clickatell is available here:
http://clickatell.rubyforge.org/