n8n Crypto Price Spike Alerts: CoinGecko + OpenAI + Telegram

Get instant crypto spike alerts—powered by CoinGecko, OpenAI, and Telegram

Stop watching charts all day. This n8n workflow checks the market on a schedule, detects major 24h price spikes (default: ±5%), and sends a clean, AI-written market takeaway plus the biggest movers directly to your Telegram chat.

What this workflow does

• Fetches market data: Every 6 hours, it pulls the top 30 coins by market cap from the free public CoinGecko API (no API key required).
• Detects price spikes: It flags any coin whose 24h price movement exceeds your configured threshold (default is 5 percent), then ranks movers by size of move.
• Generates an AI take: OpenAI writes a sharp, plain-language market take (presented first) based on the alert context.
• Sends a Markdown alert to Telegram: The workflow formats everything into a Markdown message (AI take first, then the movers with prices and percentages) and delivers it to your Telegram chat.
• Stays quiet when nothing happens: If no coin crosses the threshold, the workflow ends without sending an alert.

Use cases

• Set and forget alerts for crypto traders and holders who want fast notifications on volatility.
• Monitor sudden movers across large-cap coins without manually checking CoinGecko.
• Give SaaS operators or analysts a lightweight “market pulse” feed for dashboards or ops channels.

Technical details

• CoinGecko via HTTP Request (free public API, no key).
• OpenAI (AI Market Take step) using your OpenAI API key.
• Telegram alerts (Telegram bot token + chat ID).
• n8n nodes/stack: Set, Code, OpenAI, Telegram, Sticky Note, HTTP Request.

Setup & customization

Add your OpenAI API key to the AI Market Take node, create a Telegram bot with @BotFather, set your chat ID, then test via the manual trigger and activate. You can customize the spike threshold, the number of coins, and the check frequency in the Configuration node.