How do I connect Cal.com?

Add the Cal.com piece to a flow, then authenticate with API key. Once connected, its 3 triggers and 1 action are available anywhere in the builder.

What can I automate with Cal.com?

"Booking Cancelled" can start a flow that runs "Custom API Call", and you can chain Cal.com together with any of 760+ other apps and AI steps in between.

Can I self-host the Cal.com integration?

Yes. Activepieces is fully self-hostable, so you can run the Cal.com piece on your own infrastructure with your connections and your data staying in your environment.

Can my AI agent use Cal.com as a tool?

Yes. Every piece you connect can be exposed over one Activepieces MCP server, so Claude, Cursor, Windsurf or any MCP client can call Cal.com actions as tools.

Cal.com integration

Open-source alternative to Calendly

Start building Use Cal.com with your AI

Actions: 1
Triggers: 3
Auth: API key
License: MIT, open source
Updated: September 2026

About the Cal.com integration

Add the Cal.com piece to a flow, connect your account once, and the rest of the builder can read from it and write to it. Because the piece is open source you can run it on our cloud or self-host it, and combine Cal.com with 760+ other apps in the same flow.

Triggers

Start a flow the moment something happens in Cal.com

Each trigger below can start a flow on its own, either instantly or on a schedule.

Booking Cancelled
Create a webhook to monitor when Booking Cancelled
Booking Created
Create a webhook to monitor when Booking Created
Booking Rescheduled
Create a webhook to monitor when Booking Rescheduled

Actions

Everything Activepieces can do in Cal.com

Drop any of these into a flow and fill in the fields. No code is required.

Custom API Call
Make a custom API call to a specific endpoint
10 fields

Use Cal.com in a flow

Connect Cal.com once and every trigger and action above is yours to drop into the builder, alongside 760+ other apps. Free to start, on our cloud or your own servers.

Build a Cal.com flow Talk to sales

Cal.com, answered.

Yes. Activepieces is open source and free to start, and the Cal.com piece is included on every plan, from the free cloud tier to any self-hosted deployment.