Global Fraud Defense Network (GFDN)

A real-time fraud detection and prevention platform with AI-powered chatbot featuring voice capabilities.

Demo

Features

• Real-time Fraud Detection: Advanced workflow-based fraud detection system
• AI Fraud Assistant: Intelligent chatbot powered by Google Gemini with voice capabilities
• Voice Interface: ElevenLabs-powered text-to-speech with audio visualization
• Interactive Dashboard: Real-time metrics and transaction monitoring
• Global Transaction Mapping: 3D globe visualization of worldwide transactions

Setup Instructions

1. Install Dependencies

cd backend
ENABLE_SIMULATOR=false npm run dev

cd ../frontend
npm install

2. Environment Configuration

Option A: Automated Setup (Recommended)

Use the interactive setup script:

cd backend
./setup-env.sh

Option B: Manual Setup

Copy the example environment file and configure your API keys:

cd backend
cp .env.example .env

Edit .env file with your API keys:

# Gemini API Configuration
GEMINI_API_KEY=your_gemini_api_key_here

# ElevenLabs API Configuration (for voice features)
ELEVENLABS_API_KEY=your_elevenlabs_api_key_here
ELEVENLABS_VOICE_ID=rachel

Getting API Keys:

Google Gemini API:

1. Visit Google AI Studio
2. Create a new API key
3. Copy the key to your .env file

ElevenLabs API (for voice features):

1. Visit ElevenLabs
2. Sign up for an account
3. Go to your profile and generate an API key
4. Copy the key to your .env file
5. Optionally, choose a different voice ID from their voice library

3. Run the Application

Start both backend and frontend servers:

# Terminal 1 - Backend
cd backend
npm run dev

# Terminal 2 - Frontend  
cd frontend
npm run dev

The application will be available at http://localhost:5173

Voice Features

The AI Fraud Assistant includes advanced voice capabilities:

• Voice Mode: Default mode with speech-to-text input and text-to-speech output
• Audio Visualization: Real-time audio visualization during AI responses
• Speech Recognition: Browser-based speech-to-text for voice input
• Voice Synthesis: ElevenLabs-powered high-quality voice synthesis
• Mode Toggle: Easy switching between voice and text modes

Technology Stack

• Frontend: React, Vite, Three.js, React Flow
• Backend: Node.js, Express, Socket.io
• AI: Google Gemini API, ElevenLabs Voice API
• Visualization: D3.js, React Globe GL
• Real-time: WebSocket connections