Reliable, scalable and customizable, our SMS APIs are designed to easily integrate with your systems and applications, backed by our reliable bulk SMS gateway.
Send batches of up to 500 destination numbers per submission in real-time.
Once off, high volume message dispatches.
Robust connection, suitable for large volumes of traffic.
A protocol for exchanging XML-based messages using HTTP/S.
Use email to SMS to send SMS notifications, reminders and alerts.
Simplest, most popular way of programming your connection to Clickatell.
Language independent and simple to integrate legacy systems with our SMS gateway.
Get coding with our ready-made SMS scripts and libraries:
Find the latest SMS API technical documentation you need to get started.