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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.

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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.

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.

Industry fit

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
01

Connect your account

Link Cal.com in minutes. Harmony.ai reads your event types, team schedules, and availability rules, no new calendar to maintain.

02

Sync availability

The agent checks real open slots per event type and host schedule, converting to the caller's timezone before offering a time.

03

Book on the call

Callers get booked into the right event type, with round robin or collective host assignment handled the way your team runs it.

04

Confirm and notify

Bookings, reschedules, and cancellations fire the same Cal.com webhooks and reminders your other tools already listen for.

Frequently asked questions

Harmony.ai adds a voice agent on top of Cal.com that answers or places a call, checks live availability for the right event type, and books, reschedules, or cancels directly in your Cal.com account rather than taking a message.

Yes. The agent reads the same schedule and event type rules your Cal.com booking page shows a visitor, so it never offers a slot that a host has already blocked off, or one that another caller just took only moments before.

Yes. For a round robin event, the agent assigns the next host in rotation the same way Cal.com would. For a collective event, it checks and books against every required host's calendar at once, rather than picking just one.

Yes. The agent can move an existing Cal.com booking to a new time or cancel it outright during the call, and the change is reflected immediately on the host's calendar, not queued for someone to process later.

Yes. The agent converts availability to the caller's own timezone before offering a time, rather than assuming the host's local time, which matters for any business that regularly books callers dialing in from outside its own region.

Businesses and teams running Cal.com at real call volume, where a missed call is a missed booking, and a slot left unconfirmed after a no-show sits open until someone finds the time to chase it down and rebook it by hand.

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.ai is fully certified with ISO 27001, the internationally recognized standard for information security management.

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.ai is fully certified with ISO 27001, the internationally recognized standard for information security management.

Ready to accelerate your business with AI voice?

Built for revenue conversations, not just call handling. Talk to our team and see what the brain behind the voice can do for your pipeline.