Building a YouTube Subscriber Email Scraper with n8n, Apify, and Gmail

Architecture Overview YouTube doesn't expose subscriber email addresses through their API — but many creators list their contact email publicly on their channel page. Here's how I architected an n8n workflow to extract those emails and automate outreach: 1. Daily Cron Trigger ↓ 2. YouTube Data API → Fetch recent subscribers ↓ 3. Split array → Process each subscriber individually ↓ 4. Google Sheets lookup → Check for duplicates ↓ 5. IF subscriber exists → Skip to next ↓ (new subscriber) 6. Apify YouTube Scraper → Extract email from channel page ↓ 7. IF email found → Send Gmail welcome + log to Sheets ↓ (no email) 8. Log subscriber without email → Prevent re-scraping This workflow processes subscribers in batches of 1 to avoid rate limits, uses conditional logic to handle missing data gracefully, and maintains a Google Sheet as the source of truth for processed subscribers. YouTube Data API Integration The core data source is the YouTube Data API v3 subscriptions endpoint. You'll need OA