What is an SMS API? A Complete Beginner Guide

Not sure what an SMS API is or where to start? TXTKode's beginner guide breaks it down simply. An SMS API lets your website or app send automated text messages directly to customers — no manual effort needed. Whether you need bulk SMS for marketing, OTP for secure login, appointment reminders, or delivery alerts — SMS API makes it fast and scalable. This guide covers how it works, key use cases, and how Australian businesses can integrate TXTKode's secure SMS gateway in minutes.