Cal.com
A prospect visits your site and asks to schedule a demo. Your AI agent qualifies them, checks your Cal.com availability in real time, books the meeting, and confirms the calendar invite, all without the prospect ever leaving the chat. Open-source scheduling infrastructure meets conversational AI. Your calendar fills with qualified meetings, not scheduling links that go cold.
From real-time availability checks to instant bookings and reschedules, your AI agent handles the full Cal.com scheduling lifecycle within a single customer conversation.
Cal.com
See how sales teams and service businesses use AI agents to convert interest into booked appointments through Cal.com, without scheduling links or email ping-pong.
A prospect from your target vertical lands on your website late at night. Your AI Agent engages them, asks about team size and current tools, confirms they match your buyer profile, then checks your Cal.com availability for the next morning. The prospect picks a slot, and the agent creates the booking with full qualification notes attached. You start the next day with a meeting on your calendar and context on who is showing up.
A client messages 'I need to move our Thursday call.' Your AI Agent finds their Cal.com booking by email, cancels it with proper notification to all attendees, pulls fresh availability for the requested week, and presents three alternative times. The client picks one, the agent rebooks, and updated calendar invites go out. What usually takes four emails and two days resolves in a two-minute conversation.
An inbound lead completes qualification questions and is ready to book. Based on their company size, your AI Agent selects the appropriate Cal.com team event type. Enterprise prospects get the senior AE's 45-minute demo slot. SMB leads book into the SDR's 15-minute intro call with round-robin distribution. The right rep gets the right lead without manual assignment.
Cal.com
FAQs
The agent calls Cal.com's Get Available Slots API with the event type ID and a date range. Cal.com returns open time slots that respect your working hours, buffer times between meetings, minimum notice periods, and daily booking limits. The agent presents these slots conversationally so the prospect can pick one immediately.
Inside the conversation. The prospect never leaves your website or chat to visit a Cal.com scheduling page. The agent presents available times, the prospect picks one, and the agent creates the booking via API. Calendar invites go out automatically. Fewer drop-offs, higher conversion rates.
Tars accepts Cal.com API keys with the 'cal_' prefix for test environments and 'cal_live_' prefix for production. You also provide the base URL, which defaults to https://api.cal.com/. Self-hosted Cal.com instances can use their own base URL for full compatibility.
No. Tars interacts with Cal.com's API in real time. Booking details, attendee emails, and calendar availability are fetched live during conversations and never stored on Tars servers. Your scheduling data remains entirely within your Cal.com instance.
Yes. When booking with a team event type, the agent passes the team event type ID. Cal.com handles round-robin distribution or collective availability checking on its end. The agent can also manage team memberships, adding or removing members and assigning roles like MEMBER, ADMIN, or OWNER.
The agent uses Cal.com's Reschedule Booking API with the original booking UID and a new time slot. Cal.com handles cancellation of the old event, creation of the new one, and notification emails to all attendees. The prospect experiences a seamless reschedule without extra emails.
A scheduling link sends prospects away from your site to book. Many never return. Tars keeps them in the conversation, qualifies them first, answers their questions, handles objections, and only then books the meeting. You capture qualification data before the booking, and the prospect never experiences a page transition.
Yes. When connecting Cal.com in Tars, you can specify a custom base URL pointing to your self-hosted Cal.com instance instead of the default api.cal.com. All booking, availability, and team management features work identically with self-hosted deployments.
Don't limit your AI Agent to basic conversations. Watch how to configure and add powerful tools making your agent smarter and more functional.
Privacy & Security
At Tars, we take privacy and security very seriously. We are compliant with GDPR, ISO, SOC 2, and HIPAA.
Email - sales@hellotars.com
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