🛡 PayShield – AI Fraud Detection System with OTP & Analytics

PayShield is a production-ready AI powered fraud detection system that analyzes transactions, assigns risk scores, and protects high-value payments using OTP verification.

Live Demo: Frontend: https://payshield-frontend.onrender.com Backend API: https://payshield-backend.onrender.com/docs

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🚀 Features

• AI-based fraud risk scoring • OTP verification for high-value transactions • Real-time fraud decision engine • Premium analytics dashboard • Transaction history tracking • Cloud deployed production system

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🧠 How it Works

1. User enters transaction
2. AI model calculates fraud risk
3. If amount > 20000 → OTP required
4. System verifies OTP
5. Transaction marked SAFE / FLAGGED / BANNED

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🛠 Tech Stack

Frontend React.js

Backend FastAPI (Python)

Database SQLite

Machine Learning Scikit-Learn

Deployment Render

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📸 Dashboard Preview

Premium Fraud Dashboard with analytics and OTP protection

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⚙ Installation (Local)

Backend

cd Backend pip install -r requirements.txt uvicorn main:app --reload

Frontend

cd frontend npm install npm start

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🎯 Resume Project

This project demonstrates:

• Full stack development • AI integration • Payment security • Production deployment

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👩‍💻 Author

Riya Dixit

GitHub: https://github.com/riyadixit-rd

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