Telegram Math CAPTCHA Anti-Spam with Google Sheets - n8n Workflow | Neura Market
Telegram Math CAPTCHA Anti-Spam with Google Sheets
Protects Telegram groups from bots using simple math CAPTCHAs. New members solve equations to join; correct answers welcome them, wrong ones ban instantly, with logging to 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,
Platform
n8n
Category
Website Building
Price
$14.99
Creator
Maxim Luong
Telegram
CAPTCHA
Anti-Spam
Google Sheets
Bot Protection
Community Management
Automation
Verification
Math Challenge
How to import this workflow into n8n
1Purchase or download the workflow to get the n8n workflow JSON file.
2In your n8n instance, open Workflows and choose "Import from File" (or paste the JSON with Ctrl+V on the canvas).
3Open each node marked with a credential warning and connect your own accounts and API keys.
4Run the workflow once manually to verify the data flow, then toggle it to Active.