Sleengshort SMS API allows you to send SMS into an application or website effortlessly. All requests are HTTP, GET or POST, in some cases has a simple JSON request body.

Base URL


To get started, create an account on, on the left panel go to Settings --> API Keys --> Add New Key, and provide the name of the API key and a callback URL. To find more about the Callback URL, see reporting sections below.

An API key will be generated for your application by the process described above.

Note that when creating your API Keys there is an option for bind/route. If your sender ID is open/promotional you should create your API Key by choosing OPEN BIND otherwise, choose the option that suits your sender ID.

To authenticate API request origination from your application pass the header X-API-Key into the header of every request.


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