747 SMS API

Getting Started with SMS API

Learn how to integrate our SMS API into your applications.

Base URL

All API requests should be made to the following base URL:

https://sms.747sandbox.com/api/v1

Authentication

To authenticate your API requests, you need to include your API token in the Authorization header of your requests.

Authorization: Bearer YOUR_ACCESS_TOKEN

You can obtain an API token by making a request to the /api/v1/auth/token endpoint with your API key and secret.

Sending Your First SMS

Let's make a simple request to send an SMS message:

curl -X POST "https://sms.747sandbox.com/api/v1/Message/custom" \
  -H "Authorization: Bearer YOUR_ACCESS_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "recipient": "+15551234567",
    "message": "Hello, this is a test message!"
  }'

Response Format

All API responses are returned in JSON format. A typical response will include:

  • The requested data (e.g., message details, account information)
  • Status information (e.g., message delivery status)
  • Error details (when something goes wrong)
  • Pagination information (when applicable)

Rate Limiting

Our SMS API implements rate limiting to ensure fair usage and prevent abuse. The current limits are:

  • 100 requests per minute for standard tier users
  • 500 requests per minute for premium tier users

If you exceed these limits, you'll receive a 429 Too Many Requests response with information about when you can retry.

Next Steps

Now that you understand the basics, you can: