
Integration · Cal.com
AI voice agent for Cal.com
harmony.ai connects to Cal.com to check real availability by event type, then book, reassign, reschedule, or cancel the right host live on the call.

Turn every call into a real Cal.com booking
harmony.ai checks live availability, books the right event type, and fires the same Cal.com webhooks your other tools already use.
Built around the conversations your buyers actually have.
The plays your team runs every day - handled end to end by an AI voice agent built for your industry.
Explore the platform›What connects to Cal.com
harmony.ai reads your Cal.com event types, team schedules, and availability rules directly, whether that is a single host's calendar or a team sharing one booking page. Round robin and collective event types come through with their assignment logic intact, so the agent offers the same slots your booking page would show a caller browsing it directly.
What the agent does on a call
A caller asking for a specific event type gets checked against real availability, converted to their own timezone rather than the office's, and booked straight into Cal.com. For a round robin event, the agent assigns the next host in rotation the same way the booking page would; for a collective event, it books against every required host's calendar at once. Reschedules and cancellations happen the same way, live, without a callback.
After the call
Every booking, reschedule, or cancellation fires the same Cal.com webhooks your other systems already listen for, so anything downstream keeps working without a new integration to build. Reminder messages go out on your existing Cal.com configuration, and the calendar a host actually sees never falls out of sync with what a caller heard on the phone.
Frequently asked questions
What are Cal.com's AI features with harmony.ai?
Does the agent check real Cal.com availability?
Can it handle round robin or collective event types?
Can callers reschedule or cancel an appointment by phone?
Does it handle callers in different timezones?
Who is this built for?
Enterprise-grade security
Enterprise-grade AI infrastructure with built-in protection and security, data privacy, governance, permissions, and compliance.
SOC Type 2
We meet SOC 2 requirements to ensure secure and compliant management of data across all our systems.
GDPR
With our technical team based in Sweden, we operate under GDPR - the world's strictest standard for data privacy.
HIPAA
We safeguard your protected health information with HIPAA-compliant processes, policies, and technical controls.
ISO 27001
Harmony is fully certified with ISO 27001, the internationally recognized standard for information security management.