CoinGecko Crypto Price Alerts to Telegram (n8n Workflow)

Get CoinGecko crypto price alerts in Telegram—automatically every 15 minutes

This n8n workflow monitors selected cryptocurrencies on CoinGecko, checks price movement and custom threshold rules, and sends a single consolidated Telegram alert to your chat when conditions are met.

What this workflow does

• Runs on a 15-minute schedule (configurable to 5+ minutes if you want faster checks, to stay within CoinGecko’s free rate limits).
• Fetches current prices and 24-hour change percentages using the CoinGecko API for the configured CoinGecko coin IDs and quote currency (VS_CURRENCY).
• Evaluates trigger rules:
  • A 24-hour move threshold via ALERT_PCT_24H
  • Optional per-coin “above” and “below” price levels provided through THRESHOLDS_JSON (e.g., {"solana":{"above":250,"below":100}}).
• Prevents repeat spam with a per-alert cooldown window using workflow state, controlled by COOLDOWN_HOURS.
• Formats all triggered alerts into a single HTML message and sends it to your destination using the Telegram chat settings.

Use cases

• Notify your Telegram channel when a coin experiences a rapid 24-hour percentage move.
• Alert when a specific asset crosses an “above” breakout level or drops below a “below” support threshold.
• Operational monitoring for SaaS/product teams who want crypto price signals without building custom infrastructure.

Technical details

• Nodes / stack: Schedule Trigger, HTTP Request (CoinGecko API), Code (evaluation + cooldown logic), Set, Telegram, Sticky Note.
• Integrations: CoinGecko for price data; Telegram for delivery.
• Requirements: A Telegram bot token from @BotFather. No CoinGecko API key required.

Simply set TELEGRAM_CHAT_ID, configure COINS, VS_CURRENCY, THRESHOLDS_JSON, ALERT_PCT_24H, and COOLDOWN_HOURS, then let your n8n workflow handle the rest.