Authentication

The Realmailers API uses API keys for authentication. API keys are manually managed and available to our partners. To get an API key email us at support@realmailers.com.

Remember that your API key is a secret! Do not share it with others or expose it in any client-side code (browsers, apps). Production requests must be routed through your own backend server where your API key can be securely loaded from an environment variable or key management service.

All API requests should include your API key in an Authorization HTTP header as follows:

Authorization: Bearer YOUR_API_KEY