The challenge
A Series B SaaS company with 200+ inbound leads per week was bleeding deals. Their sales team averaged a 4-hour response time — by then, prospects had already booked demos with two competitors. They tried hiring more SDRs, but onboarding was slow and inconsistent. They needed a system that could qualify leads instantly, 24/7, without adding headcount.
What we built
We built an AI-powered lead qualification agent that plugs directly into their existing CRM and website chat.
- 01
Intelligent Lead Scoring with LangChain
Built a LangChain agent connected to GPT-4 that analyzes every inbound lead against their ICP criteria — company size, industry, tech stack, and buying signals — pulling enrichment data from Clearbit in real time.
- 02
Conversational Qualification via N8N
Designed an N8N workflow that triggers when a lead hits their website. The AI agent engages in natural conversation, asks qualifying questions, and routes hot leads directly to the right AE based on territory and deal size.
- 03
Auto-Booking with Calendar Sync
Connected to Calendly via API so qualified leads can book a meeting instantly. The agent checks AE availability, suggests times, and sends a personalized confirmation — all without human intervention.
- 04
CRM Sync & Slack Alerts
Every interaction is logged to HubSpot with full conversation history, lead score, and qualification notes. Hot leads trigger an instant Slack notification to the assigned AE with a deal summary.
Built with
Delivered in 3 weeks
LangChain
AI agent orchestration
GPT-4
Lead qualification & conversation
N8N
Workflow automation
HubSpot
CRM & pipeline management
Calendly
Meeting scheduling
Clearbit
Lead enrichment
Slack
Team notifications
The outcome
Response time dropped from 4 hours to under 3 minutes. Qualified meeting bookings increased 62% in the first month. The 3-person SDR team was redeployed to strategic accounts, and the company saved $180K/year in planned hires.
- Response Time
- 4hrs → 3min
- Meetings Booked
- +62%
- Additional Headcount
- $0
- Coverage
- 24/7
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