AI Lead Response System
Every contact form submission gets a personalised response within 15 seconds - without anyone monitoring an inbox. We built this for our own contact form and run it every day. Running cost is under EUR 0.25 per month.
The challenge
Every business with a contact form faces the same problem: leads arrive at unpredictable times, and response speed directly affects conversion. The industry benchmark is five minutes; most businesses respond in hours. We built this for ourselves and run it every day.
What we built
A fully automated response pipeline running on self-hosted n8n:
- Inbound lead data fires an n8n webhook
- Message content, name, and context are passed to Google Gemini 2.5 Flash
- Gemini drafts a personalised response in the prospect’s language
- Gmail sends the response via OAuth2 from info@digiduo.ai
- Full interaction is logged to Google Sheets
No templates. No delays. No one has to be online.
Stack: n8n (self-hosted) · Google Gemini 2.5 Flash · Gmail OAuth2 · Google Sheets · Web3Forms · Hetzner VPS
The result
End-to-end response time: approximately 15 seconds. Every lead receives a tailored, professional reply regardless of time of day. Zero manual intervention required. Running cost under EUR 0.25 per month.