Voice Based Lead Capture with Vapi and HubSpot to Qualify and Store Leads Automatically

Rishad Al Islam

System Overview
What it is: An AI-powered voice lead capture system built with Vapi, integrated with HubSpot CRM. The voice agent qualifies prospects through natural conversation, collects their details and stores them directly in HubSpot - eliminating the need for manual data entry.
Core capabilities
- AI voice agent for lead qualification via phone or web widget
- Automatic contact creation and updates in HubSpot CRM
- Customizable qualification questions (budget, timeline, interest level)
- Real-time transcription and sentiment analysis of calls
- Automated lead scoring and tagging in HubSpot
- Slack/email notifications to sales reps for hot leads
- Recording and analytics dashboard for call insights
Business problems solved
- Eliminate manual entry of leads into CRM
- Capture leads 24/7 via AI voice assistant
- Qualify leads in real time with consistent criteria
- Reduce response time for high-value prospects
- Provide sales teams with clean, structured lead data
If you’re facing any of these challenges, this solution can be tailored to you - Get a free consultation
Industries served
SaaS, B2B services, real estate, financial services, eCommerce, consulting firms.
Actor Identification
Primary actor: Prospect engaging with the AI voice assistant via phone or web voice interface.
Secondary actors: Vapi voice agent, HubSpot CRM, sales representatives, Slack/email notification system.
Actor Goals
- Prospect: Share information quickly and easily, without filling forms.
- Sales Rep: Get qualified leads with context delivered instantly in HubSpot.
- Voice Agent: Capture lead details accurately, apply scoring, and store them in CRM.
- CRM System: Maintain structured lead records and enable automated workflows.
Context and Preconditions
- Vapi voice assistant configured with lead qualification dialogue flow
- HubSpot CRM connected via API for contact creation and updates
- Lead scoring rules defined in HubSpot properties
- Slack/email notification channel set up for priority leads
- Compliance approvals in place for call recording and data storage
Basic Flow (Successful Scenario)
- Prospect calls or engages with the Vapi-powered voice agent.
- Voice agent asks qualification questions (e.g., “What’s your budget and timeline?”).
- Prospect provides responses; Vapi transcribes and validates inputs.
- Vapi sends structured lead data to HubSpot via API.
- HubSpot logs new lead, applies scoring and assigns owner.
- If lead is high-value, Slack/email notification is sent to the assigned rep instantly.
- Sales rep follows up with context-rich lead data.
Outcome: Leads are qualified and stored in HubSpot automatically, eliminating manual entry and improving response speed.
Alternate Flows
A1: Incomplete answers: If prospect skips key questions, voice agent prompts again or marks fields as pending in HubSpot.
A2: Duplicate contact: If HubSpot detects an existing record, lead data is merged/updated instead of creating duplicate.
A3: System downtime: If HubSpot API is unavailable, Vapi queues the lead and retries once the system is back online.
A4: Escalation request: If the prospect requests a live person, Vapi transfers the call to a sales rep with captured context.
Let’s make your lead management 10x faster. Book a call with us today and see the system in action.