What is an SMS API?

An API (Application Programming Interface) acts as an interface between the code you write and your SMS Gateway.

This document provides a reference for all features available to you via the HTTP interface for sending SMS.

It is quick to get started (copy and paste a URL directly in your web browser to send a message!) and there is no need to understand the additional or advanced features unless you want to use them.

What is an SMS API?

An API (Application Programming Interface) acts as an interface between the code you write and your SMS Gateway.

This document provides a reference for all features available to you via the HTTP interface for sending SMS.

It is quick to get started (copy and paste a URL directly in your web browser to send a message!) and there is no need to understand the additional or advanced features unless you want to use them.

SMS Authentication

Authenticate every request with your assigned API key and secret pair.

Send credentials over HTTPS and rotate keys regularly to protect your messaging workflows.

Use separate credentials for sandbox and production environments to keep testing isolated.

SMS API Endpoints

The SMS API exposes endpoints for outbound messages, delivery status, and callback integration.

Each endpoint returns structured JSON so your backend can parse outcomes and retries reliably.

Start with the basic send endpoint, then add callbacks and batching as your traffic grows.

SMS Rate Limits

Rate limits help protect platform reliability and fair usage across all integrations.

When limits are reached, queue or retry requests with exponential backoff.

Plan for burst traffic by monitoring response codes and pacing outbound requests.

Request Parameters

Core parameters include sender ID, destination MSISDN, and message payload.

Validate each field before dispatch to avoid avoidable request failures.

Parameter validation in your app reduces retries and improves delivery reliability.

SMS Readme

Use this guide as your quick start reference for integrating the SMS API.

It outlines setup flow, endpoint usage, and response handling at a practical level.

You can ship a working integration quickly, then extend into advanced features when needed.

Email Introduction

The Email API supports programmatic sending for transactional and campaign workflows.

Configure sender identity, template data, and recipient metadata per request.

Use authenticated requests and webhook feedback for delivery tracking and retries.

Email Authentication

The Email API supports programmatic sending for transactional and campaign workflows.

Configure sender identity, template data, and recipient metadata per request.

Use authenticated requests and webhook feedback for delivery tracking and retries.

USSD Introduction

USSD endpoints process menu sessions and return user-facing prompts in real time.

Session payloads include user input, network identifiers, and continuation state.

Keep response logic fast and deterministic to maintain smooth session progression.

USSD Authentication

USSD endpoints process menu sessions and return user-facing prompts in real time.

Session payloads include user input, network identifiers, and continuation state.

Keep response logic fast and deterministic to maintain smooth session progression.

Email Template Introduction

Template resources let you create reusable message layouts with dynamic placeholders.

Version templates safely and validate merge variables before publishing.

Template automation helps teams ship consistent messaging across products.

Email Template Authentication

Template resources let you create reusable message layouts with dynamic placeholders.

Version templates safely and validate merge variables before publishing.

Template automation helps teams ship consistent messaging across products.