An automation platform integrating WhatsApp, email, and web interfaces with AI-powered invoice generation. The system processes business communications and generates PDF invoices through orchestrated workflows across multiple channels.

Microservices architecture with AI-powered automation and multi-channel communication.

Technical Stack

• Backend: Python FastAPI, Flask with Gunicorn WSGI
• AI/ML: LangChain, OpenAI API
• Workflow: n8n automation platform
• Communication: WAHA (WhatsApp), Gmail API
• Infrastructure: Docker Compose, Nginx reverse proxy, Redis

Key Features

Invoice Generation: Template-based PDF creation with <2-second response times and multi-currency support

WhatsApp Integration: WhatsApp integration via WAHA with automated responses and webhook-driven workflows

N8N Workflow Engine: Visual workflow design with conditional logic and scheduled task automation

Multi-Environment Deployment: Docker containerization with environment-specific configurations and shared network architecture

Performance Metrics

• 2 minutes onboarding-to-first-invoice time
• Context-aware AI response, with past data retention
• 24/7 automated customer service availability
• Zero manual errors in document generation