Getting started with our APIs


Note: The documentation in our Developer Archive contains technical information relating to Developer Central. If you registered your Clickatell account after November 2016, please view the information contained on the rest of this site.


Reliable, scalable and customizable, our SMS APIs are designed to easily integrate with your systems and applications, backed by our reliable bulk SMS gateway. Enjoy easy SMS setup with our intuitive interface, Developers’ Central, and send international SMS messages through our bulk SMS gateway. Just copy and paste the code snippet to get any new API working in no time.

This documentation is intended for developers who want to write applications that can interact with the Clickatell APIs. This guide will enable you to:

  • Decide which API is best suited to your needs
  • Send your first message


Which API is best suited for me?

We have a few options for you to choose from. Here is a quick comparison of the APIs:

Description A RESTful interface to the Clickatell gateway Simple, fast, highly scalable Send an email to our server to send bulk SMS Upload a text file to an FTP server to send bulk SMS Typically used by enterprises and large organizations for high-volume sending A SOAP interface to the Clickatell gateway An XML interface to the Clickatell gateway
Minimum volume requirements None None None None Monthly bulk SMS sending (i.e thousands of messages per month) None None
Ideal for real-time messaging Yes Yes No No Yes Yes Yes
How to send your first message

Decide on the API you want to use from the table above and view the API-specific section on this site for more details on how to send a message using the selected API.

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