Technical Architecture Made Simple

The OPN and n8n integration uses HTTP Request nodes to communicate directly with OPN's robust API infrastructure:

1. Authentication: Secure connection using generic authentication methods
2. Data Exchange: Send/receive payment data through standard HTTP methods (GET, POST, PATCH)
3. Workflow Triggers: Initiate automated processes based on payment events
4. Cross-Platform Integration: Connect payment data with other business systems

This architecture enables powerful use cases like automatically emailing receipts after successful payments, updating inventory systems, triggering fulfillment processes, and syncing transaction details to your CRM—all without manual intervention.