Track expenses automatically with Telegram Bot using GPT-4o, OCR and voice recognition

Personal Expense Tracker Bot 💰 AI-powered Telegram bot for effortless expense tracking. Send receipts, voice messages, or text - the bot automatically extracts and categorizes your expenses. ✨ Key Features - 📸 Receipt & Invoice OCR - Send photos of receipts or PDF invoices, AI extracts expense data automatically - 🎤 Voice Messages - Speak your expenses naturally, audio is transcribed and processed - 💬 Natural Language - Just type "spent 50 on groceries" or any text format - 🌍 Multilingual - Processes documents in any language (EN, DE, PT, etc.) - 📊 Smart Statistics - Get monthly totals, category breakdowns, multi-month comparisons - 🔒 Private & Secure - Single-user authorization, only you can access your data - ⚡ Zero Confirmation - Expenses are added instantly, no annoying "confirm?" prompts 🎯 How It Works 1. Send expense data via Telegram: - Photo of receipt - PDF invoice - Voice message - Text message 2. AI processes automatically: - Extracts amount, date, vendor - Categorizes expense - Stores in organized format 3. Query your expenses: - "Show my expenses for November" - "How much did I spend on groceries?" - "Compare last 3 months" 📋 Expense Categories Groceries, Transportation, Housing, Utilities, Healthcare, Entertainment, Dining Out, Clothing, Education, Subscriptions, Personal Care, Gifts, Travel, Sports, Other 🔧 Setup Requirements 1. Telegram Bot Create a Telegram bot via @BotFather and get your API token. Configure credentials for nodes: - Input, WelcomeMessage, - GetAudioFile, GetAttachedFile, GetAttachedPhoto - ReplyText, NotAuthorizedMessage, DeleteProcessing 2. OpenRouter API Get API key from OpenRouter for AI processing. Configure credentials for: - Gpt4o (main processing) - Sonnet45 (expense assistant) 3. Ainoflow API Get API key from Ainoflow for storage and OCR. Configure Bearer credentials for: - GetConfig, SaveConfig - ExtractFileText, ExtractImageText - TranscribeRecording - JsonStorageMcp (MCP tool) 🏗️ Workflow Architecture | Section | Description | |---------|-------------| | Message Trigger | Receives all Telegram messages | | Bot Privacy | Locks bot to first user, rejects unauthorized access | | Chat Message / Audio | Routes text and voice messages to AI | | Document / Photo | Extracts text from files via OCR and forwards to AI | | Root Agent | Routes messages to Expense Assistant, validates responses | | Expense Assistant | Core logic: stores expenses, calculates statistics | | Result / Reply | Sends formatted response back to Telegram | | Cleanup / Reset | Manual trigger to delete all data (⚠️ use with caution) | 💬 Usage Examples Adding Expenses Querying Expenses 📦 Data Storage Expenses are stored in JSON format organized by month (YYYY-MM): ⚠️ Important Notes - First user locks the bot - Run /start to claim ownership - Default currency is EUR - AI auto-detects other currencies - Cleanup deletes ALL data - Use manual trigger with caution - No confirmation for adding - Only delete operations ask for confirmation 🛠️ Customization - Change default currency in agent prompts - Add/modify expense categories in ExpenseAssistant - Extend Root Agent with additional assistants - Adjust AI models (swap GPT-4o/Sonnet as needed) 📚 Related Resources - Create Telegram Bot - OpenRouter Credentials - Ainoflow Platform 💼 Need Customization? Want to adapt this template for your specific needs? Custom integrations, additional features, or enterprise deployment? Contact us at Ainova Systems - We build AI automation solutions for businesses. --- Tags: telegram, expense-tracker, ai-agent, ocr, voice-to-text, openrouter, mcp-tools, personal-finance