cal.com
First met in aicp-c3-basecamp-06 · Productivity & source apps · Backend, hosting & code
cal.comFirst met in aicp-c3-basecamp-06 · Productivity & source apps · Backend, hosting & code
Open-source scheduling with a real API — the booking layer voice agents plug into.
Something automated needs to book time on a calendar and you want event types, limits and availability defined properly.
Built-in Retell functions — booking agents with no custom code
Event types carry their own availability rules, limits and confirmation settings
Open source, so clients can host their own
Manages event types, availability windows and booking limits
Exposes an API key (shown once) plus event type IDs for integration
Writes bookings through to Google Calendar
Doesn't show the API key twice — copy it at creation or regenerate
Doesn't replace the calendar; it's the booking layer in front of one
Between a voice or chat agent and the human's actual calendar.
Productivity & source apps · Backend, hosting & code
No scheduling automation.
None.
current
retell-ai: native booking functions
google-calendar: where the booking lands
| Session | Coverage | Moment | What happened |
|---|---|---|---|
| Basecamp 6: Voice Agents | demonstrated | 2:18:58 | Calendar connect, one-time-visible API key, event types, availability/limits, phone-vs-email confirmation, event type ID from URL |
| Session 8: The Conversion Playbook | mentioned | 0:11:21 | The booking layer named for sequence links (planned setup in the skills pack) |