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

1. Set up a Schedule Trigger (default: every 30 minutes) in your n8n account.
2. Configure CoinGecko API (already public, no key required).
3. Ensure your Data Table (crypto_price_db) exists.
4. Add your NewsAPI API key in HTTP Request node.
5. Configure Google Gemini API credentials.
6. Connect your Gmail account.
7. Replace the email recipient with your own.
8. 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

1. Create account at https://newsapi.org/
2. Generate API key
3. 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

1. Go to https://aistudio.google.com/welcome
2. Generate API key
3. 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: [email protected] 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

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

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

3. Portfolio Monitoring Track assets and receive alerts without manual checks.

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

5. 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.

Contact WeblineIndia for:

• Workflow setup & deployment
• Custom automation solutions
• AI-powered business workflows
• Add-on feature development

Let us help you turn automation into a competitive advantage.