LetterUp – AI Newsletter Generator
AI Newsletter generating platform built with Node.js, utilising GPT-5 API for content creation, MongoDB for data storage, and React for the frontend interface, designed to streamline newsletter production and distribution.
01/2025
90 days
5 technologies
Project Overview
LetterUp is an AI-powered newsletter generation platform that streamlines content creation and distribution using GPT-5 API for intelligent content generation.
Key Features
- AI Content Generation: GPT-5 powered article and newsletter creation
- Automated Workflows: Scheduled generation and distribution
- Telegram Integration: Mini App for quick content management
- Modern Dashboard: React-based intuitive interface
- Data Management: Supabase for reliable storage
Technical Architecture
- Frontend: React with modern UI components
- Backend: Node.js API with Python AI services
- AI Integration: GPT-5 API for content generation
- Database: Supabase (PostgreSQL) for data persistence
- Deployment: Containerized with Docker
Development Highlights
- Prompt engineering for consistent newsletter quality
- Rate limiting and cost optimization for AI API calls
- Template system for customizable newsletter formats
- Multi-language content generation support