Telegram Math CAPTCHA Anti-Spam with Google Sheets

This workflow automates spam protection for Telegram groups by implementing a lightweight math CAPTCHA system. When a new member joins, the bot instantly detects them, generates a random arithmetic question (e.g., '7 + 3 = ?'), and sends a personalized challenge message. The user's response is verified against the expected answer stored in Google Sheets, ensuring only humans pass while bots fail reliably.

Key benefits include zero AI costs, 99% effective bot blocking, ultra-low resource usage, and automatic cleanup of verification messages to keep chats clean. It scales effortlessly for groups with thousands of members, saving community managers hours of manual moderation.

Ideal for gaming communities, professional networks, educational channels, or any public Telegram group battling spam invasions. Setup takes under 5 minutes: just add your bot token and Google Sheet ID for plug-and-play deployment. Tracks all verifications in Sheets for easy analytics without database overhead.