Skip to main content
Note: This API supports transactional, OTP, promotional and bulk messaging with comprehensive delivery tracking.

​
Overview

The Hixbe SMS Gateway API provides a comprehensive set of endpoints for sending SMS messages, managing sender IDs, creating message templates, and tracking delivery reports. The API supports multiple message types including OTP, transactional, and promotional messaging.

​
Authentication

All requests require Bearer token authentication: 
Authorization: Bearer sk_live_xxxxx

​
Base URL

Production: https://api.hixbe.com/sms

​
Versioning

API versioning is handled via the Hixbe-Version header. Use 2026-01-01 for the latest version. Include this header in all API requests: 
Hixbe-Version: 2026-01-01

​
Key Features

​
Message Types

  • OTP: One-time passwords and verification codes
  • Transactional: Order confirmations, alerts, and notifications
  • Promotional: Marketing and promotional messages

​
Bulk Messaging

Send messages to multiple recipients using CSV uploads or recipient lists.

​
Sender ID Management

Register and manage custom sender IDs for branded messaging.

​
Message Templates

Create reusable templates with variable substitution for consistent messaging.

​
Delivery Tracking

Real-time delivery reports and webhook notifications.

​
Balance Management

Check account balance and usage statistics.

​
Rate Limits

  • Single SMS: 100 requests per minute
  • Bulk SMS: 10 bulk jobs per hour
  • Account endpoints: 60 requests per hour

​
Message Length

  • Standard SMS: 160 characters (GSM-7) or 70 characters (UCS-2)
  • Concatenated SMS: Up to 1530 characters (GSM-7) or 670 characters (UCS-2)

​
Getting Started

Quickstart Guide

Get started with your first SMS integration

SMS API FAQ

Common questions and detailed guides

Authentication

Learn about API keys and security

Webhooks

Set up SMS delivery notifications