How One Builder Scores B2B Leads 1-10 in Seconds With n8n + AI

Description and use

An automated workflow using n8n and Gemini 2.5 Flash scores inbound B2B inquiries from 1 to 10 in seconds and routes them automatically, eliminating response delays and reducing lost high‑budget prospects.

Problem

High‑budget prospects were lost because agency staff could not triage inbound inquiries quickly enough.

Outcome

The workflow eliminates the human bottleneck, scores leads in seconds, and routes them automatically, reducing lost high‑budget prospects and freeing staff time.

Workflow

• Capture inquiry via web form
• Log raw submission to Google Sheets with "Pending" status
• Send data to Gemini 2.5 Flash for scoring
• Write score and reason back to sheet, change status to "Scored"
• Route lead: high score → instant alert, middle score → nurture, low score → automated reply
• Handle errors: keep row as "Pending" and notify on AI failure

Evidence

Most agencies don’t have a lead problem. They have a response‑time problem.

Source

The system the author built does three things: Captures every inquiry from a web form. Scores each lead from 1 to 10 using AI, in seconds. Routes the lead based on that score.

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Before the AI touches anything, an n8n Google Sheets node logs the raw submission with a “Pending” status.

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Next, the lead data is passed to Gemini 2.5 Flash, which evaluates the submission and returns a score from 1 to 10.

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High scores: instant alert to the sales owner (Slack, email, or SMS) so they can reply fast.

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