Authentication Overview

Brevo API supports multiple authentication methods to secure your API requests.

Authentication Methods

API Keys

The most common method for server-to-server communication.

• Get your API key
• Simple and straightforward
• Perfect for backend integrations

OAuth 2.0

For applications that need user authorization.

• OAuth 2.0 setup guide
• Secure user consent flow
• Ideal for third-party applications

JWT Tokens

For advanced authentication scenarios.

• JWT implementation guide
• Stateless authentication
• Enhanced security features

Security Best Practices

1. Never expose API keys in client-side code
2. Use environment variables for sensitive data
3. Rotate keys regularly
4. Implement proper error handling
5. Use HTTPS for all requests

Rate Limiting

All authentication methods are subject to rate limiting:

• Free accounts: 300 requests/hour
• Paid accounts: 3000 requests/hour
• Enterprise: Custom limits available