Monitor Competitor Prices with Firecrawl, GPT-4.1, Sheets & Gmail Alerts

Introduction Automate price monitoring for e-commerce competitors—ideal for retailers, analysts, and pricing teams. ⚠️ Self-Hosted Only: Requires self-hosted n8n instance. How It Works Scrapes competitor URLs, extracts data via AI, detects price/stock changes, logs to Google Sheets with email alerts. Workflow Template Trigger → Scrape → AI Extract → Parse → Compare → Detect Changes → Update Sheets + Alert Workflow Steps Scraping: Firecrawl fetches Nike, Adidas, Sneaker data AI Extraction: Processes product details Parsing: Structures response Historical Check: Reads Sheets data Change Detection: Identifies price/stock updates Dual Output: Updates Sheets + sends alerts Setup Instructions

1. Firecrawl API Get key from dashboard → Add to n8n
2. OpenAI API Get key from platform → Add to n8n
3. Google Sheets OAuth2 Create OAuth2 in Google Cloud Console → Authorize in n8n → Enable API
4. Gmail OAuth2 Use same project → Authorize in n8n → Enable API
5. Spreadsheet Setup Create Sheet with required columns → Copy ID from URL → Paste in workflow Prerequisites Self-hosted n8n, Firecrawl account, OpenAI key, Google account (Sheets + Gmail OAuth2) Customization Add URLs, adjust thresholds, integrate Slack Benefits Saves 2+ hours daily, real-time tracking, automated alerts Google Sheets Structure Required Columns: Product Name** (Column A) Current Price** (Column B) Previous Price** (Column C) Stock Status** (Column D) Last Updated** (Column E) URL** (Column F) Change Detected** (Column G)