Chrome Extension
React, TypeScript, Manifest V3
User interface + prompt interactions.
LIVELive Product
Promptalo — AI Prompt Platform & Chrome Extension
Production-ready Chrome extension with freemium model, Stripe billing, and backend entitlement synchronization.
Freemium model with Stripe webhooks, MongoDB-backed entitlements, and rate-limited usage control.
- Chrome Extension (Manifest V3)
- Stripe subscriptions + webhook sync
- MongoDB user + entitlement storage
- Rate limiting and usage enforcement
ReactTypeScriptNode.jsMongoDBStripe
System Architecture
Diagram focused on system boundaries, data flow, and integration responsibilities.
Promptalo Architecture Diagram
Backend API
Node.js, Express
- - Authentication
- - Prompt management
- - Usage tracking
- - Subscription validation
MongoDB
- - Users
- - Prompts
- - Subscriptions
- - Usage logs
API Requests
Read / Write
Stripe
Billing system, subscription lifecycle, and webhook events.