Share: Lead Capture + AI Qualification - free 3-node workflow (webhook to GPT score to Slack, human-approval gate)

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Free n8n workflow I run as the front door of my freelance lead flow.

Nodes: Webhook → AI Qualify (OpenAI gpt-4o-mini) → Slack Alert

What it does:

  • Receives form/site leads via POST /lead
  • GPT scores the lead 1-10 (budget-fit + readiness) and returns a JSON reply
  • Slack gets the raw message AND the AI’s score side-by-side - you decide what to send
  • No auto-replies. A human approves before anything goes out.

Why deliberately small:

  • 3 nodes, one credential each, zero maintenance
  • The approval gate keeps the AI as a helper, not just an agent
  • Runs on the free n8n tier

Setup (~10 min): import JSON, add OpenAI key (or swap for Ollama), connect Slack, activate.

Code (sanitized JSON): n8n workflow: Lead capture + AI qualification with human-approval gate (free). This is workflow 1 of 5. The full pack (invoices, content repurposing, onboarding, support triage + setup PDF) is at https://bettayeb8.gumroad.com/l/freelancer-ai-automation-playbook · GitHub

My question to the community: where do you draw the line between “AI drafts it” and “AI sends it” in your workflows?

Full pack (invoices, content repurposing, onboarding, support triage + setup PDF): Freelancer AI Automation Playbook — 5 n8n Workflows

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''Greate share,@dilandustandup!
Regarding your question:I usually draw the line at external communication and financial transactions. Having Ai draft the responses,score leads,or triage task internally is a huge time- saver.However ,sending emails to clients or taking action that affect money should always have a **Human -in-the-Loop(HITL)**approval gate ,just like your workflow has setup.

Fully automated sending works fine for low -risk internal notification ,but client facing action need that final human check to avoid hallucinations or incorrect context .

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"Welcome to the n8n community, @dilandustandup! :tada:

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“Spot on, Khubaib! That internal vs. external split is the perfect framework. It allows you to maximize speed without risking client trust. Out of curiosity, what’s the closest call or ‘near-miss’ you’ve seen where a HITL gate saved the day? I bet a lot of people reading this have some wild stories.”