API DOCUMENTATION

SMS Gateway API

Build messaging into your applications with our REST API. Send SMS, WhatsApp messages, and OTPs with a few lines of code.

Get started in 5 minutes

Get your API key and send your first SMS in just a few lines of code.

Quick Start Guide API Reference

Send your first SMS

curl -X POST "https://api.yourdomain.com/api/v1/sms/send" \
  -H "Authorization: Bearer sk-your-api-key" \
  -H "Content-Type: application/json" \
  -d '{
    "to": "+265888123456",
    "message": "Hello from SMS Gateway!"
  }'

Explore the API

SMS API

Send single, bulk, and scheduled SMS to any phone number worldwide.

WhatsApp API

Send WhatsApp messages, media, and templates via Evolution API.

OTP API

Generate and verify one-time passwords for user authentication.

Bulk Messaging

Send messages to thousands of recipients in a single API call.

Webhooks

Receive real-time delivery status callbacks for your messages.

Authentication

Secure API access with API keys and OAuth2 tokens.

Base URL

https://api.yourdomain.com

All API endpoints are relative to this base URL. Use HTTPS in production. All requests must include an Authorization header.