Score Leads with Google Gemini & Route Hot Leads Webhook

Instantly score every inbound lead with Google Gemini—and webhook only the hot ones

This n8n workflow automatically receives lead submissions via a webhook, uses Google Gemini to score purchase intent and fit (0–10), and then routes hot leads to your destination webhook while sending lower-scoring leads to a cold-lead branch for further handling.

What this workflow does

• Receives leads via n8n webhook: Accepts a lead submission as a JSON POST.
• Loads routing configuration: Reads the hot-lead destination webhook URL and a score threshold from configured workflow values.
• Scores with Google Gemini: Sends the lead JSON to the Google Gemini API and requests a JSON-only response containing:
  • a numeric score (0–10)
  • a one-sentence reason
• Parses and structures the result: Extracts the score and rationale into fields for downstream use.
• Routes based on the threshold:
  • If score meets/exceeds the threshold → posts to your hot-lead destination webhook with the score, reason, and original lead payload.
  • If score is below the threshold → marks the lead as “cold-lead” for downstream processing.

Use cases

• Route sales-ready form submissions to Slack/CRM webhooks while capturing lower-intent leads for nurture.
• Prioritize high-fit leads from a SaaS landing page or lead-gen partner using Gemini scoring.
• Reduce manual triage by automatically attaching a Gemini one-sentence justification to every hot lead.

Technical details

• Google Gemini API key added to an n8n HTTP Query Auth credential (example parameter name: key).
• Uses n8n nodes including: webhook, http request, if, and set (plus documentation via sticky note).
• Core logic: Gemini JSON scoring → compare to threshold → webhook fan-out (hot vs cold-lead).

Setup checklist

Create a Gemini API key, configure the hot-lead destination URL + score threshold, then point your form/CRM/app to POST lead JSON to the workflow’s production webhook.