#Receipt.Cash

A mobile-first receipt settlement PWA using Nostr and Cashu.

Receipt.Cash is a Progressive Web App (PWA) that allows users to split and settle bills by capturing receipts and sharing them with others using the Nostr protocol and Cashu payments.

• Receipt Capture: Instantly capture receipts with your device's camera
• AI Processing: Extract line items, totals, and tax information automatically
• Nostr Integration: Share receipts and track settlements via Nostr events
• Cashu Payments: Fast, easy payments with Cashu ecash
• Real-time Updates: See settlement status in real-time as payments come in

• Payer: The person who paid the bill and wants to be reimbursed
• Settling Person(s): People who need to pay their share of the bill

• Node.js 18+
• npm or yarn

# Clone the repository
git clone https://github.com/yourusername/receipt-cash.git
cd receipt-cash

# Install dependencies
npm install

# Start the development server - https needed for access to camera on mobile
env VITE_USE_HTTPS=true npm run dev

npm run build

1. The payer captures a receipt using their phone's camera
2. Receipt data is automatically extracted and displayed
3. The payer creates a Cashu payment request
4. A Nostr event is published containing receipt data and payment request
5. A QR code is generated for settling persons to scan
6. Settling persons select their items and make payments
7. All users see real-time updates as items are settled

• Vue.js: Frontend framework
• Tailwind CSS: Styling
• NDK (Nostr Development Kit): Nostr protocol integration
• Cashu: Ecash payments
• ppq.ai API: Receipt OCR and data extraction

Contributions are welcome! Please feel free to submit a Pull Request.