Authentication Overview

Aurora SendCloud provides secure parameter-based authentication for both Email and SMS APIs. Choose your service below to get started with implementation.

Authentication by Service

envelope

Email API Authentication

Complete guide to Email API authentication, including apiUser and apiKey parameters, domain verification, and regional endpoints.

sms

SMS API Authentication

Comprehensive SMS API authentication guide covering smsUser and smsKey parameters, template management, and implementation.

Quick Reference

Credential Types

Email API: apiUser + apiKey
SMS API: smsUser + smsKey

How to Pass Parameters

Authentication credentials can be sent via:

Query Parameters (GET requests)

https://api.aurorasendcloud.com/api/endpoint?apiUser=your_user&apiKey=your_key

Request Body (POST requests)

Content-Type: application/x-www-form-urlencoded

apiUser=your_user&apiKey=your_key&other_params=values

Regional Endpoints

Email API

Choose the appropriate endpoint based on your region:

Singapore: https://api.aurorasendcloud.com/
US (Silicon Valley): https://api-us.aurorasendcloud.com/
Hong Kong: https://api-hk.aurorasendcloud.com/

SMS API

Global: https://api.aurorasendcloud.com/

Security Best Practices

keyCredential Management

Store credentials securely and never expose them in client-side code
- Use environment variables or secure configuration management
- Rotate credentials periodically for enhanced security
- Implement proper access controls for credential storage

shield-altRequest Security

Always use HTTPS endpoints for API requests
- Validate SSL certificates in your HTTP client
- Implement request timeouts and retry logic
- Monitor API usage for unusual patterns

Common Issues & Solutions

Authentication Failed (401 Unauthorized)

✅ Verify correct parameter names for your service
✅ Check credentials haven't expired or been reset
✅ Ensure no extra spaces or special characters
✅ Confirm you're using the correct regional endpoint (Email API only)

Parameter Format Issues

✅ Use request body or query string, not headers
✅ Set proper Content-Type for POST requests
✅ URL-encode special characters correctly
✅ Include all required parameters

Get Started

→ Email API Authentication Guide

Learn about Email API credentials, domain verification, and multi-region setup.

Need Help?

For detailed implementation instructions:

Email API: Visit the Email Authentication guide
SMS API: Visit the SMS Authentication guide
Support: Contact our team with specific request details for faster resolution

Choose your service above to access detailed authentication instructions and code examples.