n8n Workflow: Qualify Form Leads with OpenRouter + Gmail

Automatically qualify n8n Form leads with OpenRouter—reply only when they’re a match

This n8n workflow captures new lead submissions from an n8n Form, uses OpenRouter to score and draft a personalized email response, logs outcomes in Google Sheets, and sends emails via Gmail only for qualified leads—then reminds you to follow up after 48 hours.

What this workflow does

• Receives new leads from an n8n Form, including contact details, the request, and urgency.
• Calls OpenRouter with the lead details and your business context to return a JSON payload containing a qualification score, a summary, and a ready-to-send reply email.
• Qualifies the lead by comparing the OpenRouter score against a minimum score threshold.
• If qualified: sends the OpenRouter-drafted reply to the lead using Gmail, and appends a “replied” row to the Leads tab in Google Sheets.
• If not qualified: appends a “not_qualified” row to the same Google Sheets tab, without emailing the lead.
• Follow-up reminder: waits 48 hours, then emails the owner a Gmail reminder to follow up with qualified leads.

Use cases

• SaaS operators who want lead scoring + personalized outreach from inbound form submissions.
• Automation engineers building qualification-first pipelines that avoid spamming unqualified contacts.
• Teams that need a simple CRM-like log in Google Sheets with clear lead statuses.

Technical details

• Nodes/logic: form trigger, if, set, wait, gmail, and a sticky note.
• Integrations: OpenRouter (HTTP Header Auth: Authorization: Bearer YOUR_KEY), Gmail (OAuth2), and Google Sheets (OAuth2).
• Google Sheets requirement: a tab named “Leads” with headers Timestamp, Name, Email, Request, Score, Summary, Status.
• Configuration before activation: your business description, tone, owner email address, and the minimum score threshold.