Developers

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SMS APIs


Reliable, scalable and customizable, our SMS APIs are designed to easily integrate with your systems and applications, backed by our reliable bulk SMS gateway.


Rest API

Send batches of up to 500 destination numbers per submission in real-time.


FTP API

Once off, high volume message dispatches.


SMPP (Short Message Peer to Peer) API

Robust connection, suitable for large volumes of traffic.


SOAP API

A protocol for exchanging XML-based messages using HTTP/S.


SMTP/Email to SMS

Use email to SMS to send SMS notifications, reminders and alerts.


HTTP/S API

Simplest, most popular way of programming your connection to Clickatell.


XML

Language independent and simple to integrate legacy systems with our SMS gateway.


Scripts and tutorials

Get coding with our ready-made SMS scripts and libraries:

More scripts on GitHub


API documentation

Find the latest SMS API technical documentation you need to get started.

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