Flat Expense Tracker WhatsApp Bot

Send bill screenshots to the WhatsApp bot and it will extract the amount, categorise the expense, and log it to Google Sheets automatically.

Commands

• Send an image — bot reads your bill and saves it
• summary — this month's split breakdown
• help — show all commands

API Endpoints

• POST /api/scan-bill — OCR + parse a bill image
• POST /api/add-expense — manually add an expense
• GET /api/expenses — list this month's expenses
• GET /api/summary — monthly split summary
• GET /api/init-sheet — initialise Google Sheet headers