Detect Bitcoin price spikes and send Gemini-powered NewsAPI Gmail alerts

Bitcoin Price Spike Detector with Gemini AI, NewsAPI & Gmail Alerts

This workflow monitors Bitcoin price changes every 30 minutes. If the price increases or decreases by 3% or more, it fetches recent Bitcoin-related news, summarizes it using AI (Google Gemini) and sends an email alert explaining the likely reason behind the price movement.

Quick Implementation Steps

Set up a Schedule Trigger (default: every 30 minutes) in your n8n account. Configure CoinGecko API (already public, no key required). Ensure your Data Table (crypto_price_db) exists. Add your NewsAPI API key in HTTP Request node. Configure Google Gemini API credentials. Connect your Gmail account. Replace the email recipient with your own. Activate the workflow.

What It Does

This workflow continuously monitors Bitcoin price fluctuations by fetching the latest price from CoinGecko at regular intervals. Each new price is stored in a data table and compared with previous entries to detect significant changes.

When a price movement of ±3% or more is detected, the workflow automatically triggers a secondary process. It fetches recent Bitcoin-related news articles using NewsAPI, filters and aggregates relevant descriptions and sends them to an AI agent powered by Google Gemini.

The AI agent generates a concise summary of the news and explains the likely reason behind the price movement. Finally, it sends a well-crafted email alert with insights, helping users stay informed and react quickly to market changes.

Who It's For

Crypto traders and investors Financial analysts monitoring Bitcoin trends Automation enthusiasts using n8n Developers building AI-powered alert systems Anyone who wants real-time insights on Bitcoin price movements

Requirements

To use this workflow, you need:

n8n account (self-hosted or cloud) Existing Data Table (crypto_price_db) NewsAPI account & API key**
https://newsapi.org/ Google Gemini API key**
https://aistudio.google.com/welcome Gmail account** connected via OAuth2 Internet access for API calls

How It Works & Set Up

1. Schedule Trigger

Node: Execute at every 30 minutes Runs the workflow at regular intervals. You can modify this interval as needed.

2. Fetch Bitcoin Price

Node: Fetch BitCoin Price API: CoinGecko Endpoint: https://api.coingecko.com/api/v3/simple/price Query: ids=bitcoin vs_currencies=usd

3. Store Price in Data Table

Node: Add bitcoin price to sheet Stores the latest price in crypto_price_db.

4. Retrieve Recent Prices

Nodes: Get all prices from sheet** Get last two prices from sheet** Keeps only the latest two entries for comparison.

5. Prepare Data

Node: Edit Fields Ensures the price field is properly formatted.

6. Detect Price Change

📈 Price Increase (≥ 3%)

Node: If new price is increased by 3% Condition compares latest vs previous price.

📉 Price Decrease (≥ 3%)

Node: If new price is dropped by 3%

7. Fetch News

Nodes: Fetch news about bitcoin** Fetch news about bitcoin1** API: NewsAPI Query: q=bitcoin

Setup NewsAPI

Create account at https://newsapi.org/ Generate API key Add it in HTTP Request node → Headers

8. Filter & Aggregate News

Nodes: Filter all news** Aggregate filtered news** Extracts only article descriptions and combines them.

9. AI Processing (Google Gemini)

Nodes: AI Agent** Google Gemini Chat Model**

Setup Gemini API

Go to https://aistudio.google.com/welcome Generate API key Add credentials in n8n: Type: Google PaLM / Gemini Paste API key

AI Task:

Summarize news Explain price movement Generate email subject & content

10. Send Email Alert

Nodes: Send a message in Gmail** Sends AI-generated email.

Important:

Replace: errorcommits@mailinator.com with your own email address.

How To Customize Nodes

Change Price Threshold** Modify IF node conditions (e.g., 5% instead of 3%)

Change Cryptocurrency** Update CoinGecko ids parameter

Modify Email Content** Adjust AI prompt inside AI Agent nodes

Adjust Frequency** Change Schedule Trigger interval

News Filtering** Modify Code node to include titles, sources or keywords

Add-Ons (Enhancements)

Add Slack / Telegram alerts Store historical data in Google Sheets or database Add support for multiple cryptocurrencies Create a dashboard using n8n + external tools Add sentiment analysis on news Trigger trading bots or alerts

Use Case Examples

Crypto Trading Alerts
Get instant insights when Bitcoin price moves significantly.

Market Analysis Automation
Automatically correlate price changes with real-world news.

Portfolio Monitoring
Track assets and receive alerts without manual checks.

AI-Powered Financial Reports
Generate automated summaries for decision-making.

Research & Insights Tool
Understand market sentiment quickly.

And many more use cases can be built on top of this workflow.

Troubleshooting Guide

| Issue | Possible Cause | Solution | |------|---------------|---------| | No email received | Gmail not configured | Reconnect Gmail OAuth2 credentials | | No news data | Missing NewsAPI key | Add API key in HTTP Request headers | | AI not responding | Gemini API not configured | Verify Gemini credentials | | Workflow not triggering | Schedule not active | Activate workflow | | Incorrect price comparison | Data table missing values | Ensure table stores numeric USD values | | Empty email content | News descriptions missing | Check Code node output |

Need Help?

If you need assistance setting up this workflow, customizing it or extending it with advanced features like multi-crypto tracking, dashboards or AI enhancements — we’re here to help.

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