See llms.txt for all machine-readable content.

Back to Templates

Triage inbound leads with Claude, Gmail, Google Sheets, and Slack

Created by

Created by: Kelson Works || kelsonworks
Kelson Works

Last update

Last update 3 hours ago

Categories

Share

Quick overview

This workflow collects inbound leads via an n8n Form, uses Anthropic Claude to classify the lead and draft a reply, requests human approval in Gmail, and logs approved leads (with the draft) to Google Sheets while sending Slack alerts if the Claude step fails.

How it works

  1. Receives a new lead submission through an n8n Form.
  2. Normalizes the form fields into consistent lead properties and adds a submission timestamp.
  3. Sends the lead details to the Anthropic Messages API (Claude) to classify the lead (hot/warm/cold/spam) and generate a draft reply email.
  4. Parses and validates Claude’s JSON response, and routes failures to a Slack alert.
  5. Emails the classification and draft reply to a reviewer in Gmail and waits for an approve/reject decision.
  6. If approved, appends the lead details, classification, and draft reply to a Google Sheets “Leads” tab; if rejected, the workflow ends without taking further action.

Setup

  1. Add an Anthropic API key as an HTTP Header Auth credential and ensure the request headers include your Anthropic version.
  2. Connect a Gmail OAuth2 account and replace [email protected] with the reviewer’s email address.
  3. Connect a Google Sheets OAuth2 account, set your spreadsheet ID, and ensure a “Leads” sheet exists with columns matching the appended fields.
  4. Connect a Slack account and set the target channel (for example, #alerts) for failure notifications.
  5. Publish the n8n Form and share its URL where you collect lead submissions.

Requirements

  • Anthropic API key (any Claude model works; the workflow defaults to claude-sonnet-5)

Customization

  • Change the lead categories (hot/warm/cold/spam) or the reply tone by editing one system prompt; swap Gmail approval for Slack buttons; log to a CRM instead of Sheets

Additional info

The AI drafts but never sends: human approval gates every outbound email, failures alert loudly in Slack, and lead text is treated as data, never as instructions. Full docs: github.com/kelsonworks/n8n-claude-lead-pipeline