How to Build an AI Lead Response Agent
A study from Harvard Business Review found that companies who respond to inbound leads within five minutes are 100x more likely to connect and 21x more likely to qualify the lead compared to companies that wait 30 minutes. After an hour, the odds of qualifying drop almost to zero.
Most teams don’t respond in five minutes. Most teams respond in hours — sometimes days. Not because they don’t care, but because someone has to see the email, look up the lead, draft a reply, and figure out next steps. By then, the lead has already talked to a competitor. This is the speed-to-lead problem, and it costs companies deals every day.
An AI lead response agent fixes this. It sits on your inbound inbox, replies in under a minute, qualifies the lead, CCs the right person on your team, and books a call — all before a human even opens the email.
Sixty seconds. The lead gets a thoughtful reply, qualifying questions, time slots for a call, and the right human is already CC’d.
How it works
Create a lead response agent at dashboard.carlyassistant.com (or email carly@usecarly.com and describe what you need). Connect your email, calendar, and CRM — Gmail, Google Calendar, and HubSpot cover most setups. Tell the agent your qualifying criteria, who to CC for which types of leads, and your available meeting times. It starts responding immediately and learns your voice, routing rules, and qualification logic over time. Full setup walkthrough: How to Create a Custom AI Email Agent.
What an AI lead response agent connects to
Email: Gmail, Outlook
Calendar: Google Calendar, Outlook Calendar
CRM: HubSpot, Salesforce, Pipedrive, Attio, Close, Zoho, Follow Up Boss + 12 more
Enrichment: Apollo, Hunter, Lusha, People Data Labs
Messaging: Slack, Microsoft Teams
See the full list of integrations.
What an AI lead response agent can do
- Inbound inquiry from your website — agent replies within a minute with a personalized response, asks qualifying questions, offers time slots from your calendar, and CCs the right salesperson based on lead type, geography, or deal size
- After-hours lead from a form submission — agent responds immediately even at 2 AM, so the lead doesn’t wake up and contact a competitor first. Your team gets a full Slack summary in the morning with qualification notes and a call already booked
- High-volume lead triage — when 30 demo requests come in from a product launch, the agent qualifies each one, routes enterprise leads to senior reps, sends SMB leads a self-serve onboarding link, and flags anything ambiguous for manual review
Build your lead response agent in under 10 minutes at dashboard.carlyassistant.com, or email carly@usecarly.com and describe the agent you need.
Related: How to Build an AI Lead Enrichment Agent | How to Build an AI CRM Agent | How to Build an AI Email Triage Agent | How to Build an AI Address Collector | Best AI Agents for Sales
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"Before Carly, I relied on a Calendly link, but the whole process felt impersonal and not very professional. Carly changed that by handling all the back-and-forth, so I'm no longer stuck in endless email threads trying to line up schedules.
Now Carly reaches out to candidates, shares my real-time availability, lets them pick a slot, then sends a Zoom link and drops it straight into my calendar. She sends reminders to both of us before each call, which has significantly reduced no-shows and last-minute confusion.
On top of scheduling, Carly acts like a full executive assistant, sending me my schedule the night before so I can prepare for each call. It reminds me of the old x.ai assistant, but Carly is noticeably smarter, faster, and better suited to my healthcare recruitment business."
