Automated Business Email Finder & Verifier with AI

This n8n workflow streamlines lead generation by pulling unprocessed leads from a Google Sheet where Status is FALSE. It queries Serper.dev for email snippets from the company domain, then uses Gemini Flash via OpenRouter to intelligently detect the dominant email pattern (e.g., firstname.lastname@company.com).

Next, it constructs potential emails for each lead's first/last name, verifies them in real-time via Prospeo API or bulk via Sparkle.io, and logs results back to the sheet with pattern, email, confidence score, verification status, and flips Status to TRUE. Batched looping prevents API limits, enabling safe processing of thousands of leads.

Ideal for sales teams, SDRs, recruiters in real estate or any sales-heavy field. Benefits include 90%+ time savings on manual research/verification, higher outreach accuracy (reducing bounces), and free-tier scalability up to 2,500 contacts/month. Use cases: Enriching CRM leads, cold email campaigns, talent sourcing—start with a sheet of names/companies and watch verified emails populate automatically.