The API allows you to send messages through your projects and services over HTTP/HTTPS, SMTP and SMPP protocols. Ready-made libraries in different programming languages connect to your project and help you send messages from anywhere with a single command. For simplified authorization, instead of a login and password pair, you can use a special API key.
To insert a button in the message, when you click on it, you will open the browser and go to the specified address, you need to add a special macro {button,url,text} to the message text, where: <button> – macro name. <url> – full http address of the link that will be clicked when the button is clicked. <text> – the text of the button. The length of the text can not exceed 30 characters.
To insert a button into the message, when you click on it, the subscriber will be called to the specified phone number, you need to add a special macro to the message text {button, tel:79999999999, text}.