n8n Stock Price Monitor: Real-Time Alerts for NSE & US

Real-time Stock Price Alerts for NSE & US—automatically in n8n

This n8n workflow monitors your selected stocks across Indian (NSE/BSE) and US markets, checks live prices every few minutes, and sends instant breakout/breakdown alerts to Email and Telegram when predefined upper/lower limits are crossed—without spamming thanks to smart cooldown control.

What this workflow does

• Market Hours Trigger: Runs every 2 minutes during market hours.
• Read your watchlist: Pulls stock symbols and alert parameters from Google Sheets.
• Parse watchlist data: Processes symbols and predefined upper/lower limits.
• Fetch live prices: Retrieves real-time stock prices using the Twelve Data API.
• Smart alert logic: Validates whether alert conditions are met.
• Cooldown periods: Prevents alert spam by enforcing cooldown between alerts per stock.
• Send notifications: Sends detailed Email alerts and instant Telegram notifications.
• Update alert history: Records alert timestamps in Google Sheets.
• Status monitoring: Checks workflow success/failure and can notify an admin when errors occur.

Use cases

• Day trading: Get immediate alerts when a stock breaks above resistance or drops below support.
• Investors: Monitor portfolio risk levels using lower-limit triggers.
• Portfolio managers: Track multiple tickers with consistent cooldown-controlled alerts.
• Automation engineers: Manage operational monitoring via success/error notifications.

Technical details

• n8n nodes/logic: cron trigger (market-hour schedule), if conditions, code steps, telegram notifications, email send.
• Data source: Google Sheets (watchlist + alert history).
• Market data: Twelve Data API for live prices.
• Reliability: Built-in error handling with success/error notifications.
• Implementation hint: Uses a sticky note to guide workflow setup.