Why use Hookfire with Cal.com?

Instant push notifications

Get notified on your phone the moment a Cal.com webhook fires. No more checking dashboards.

Subscribe to what matters

Choose exactly which Cal.com events trigger notifications. Filter out the noise.

Team-wide delivery

Control who on your team gets notified and how: push notifications, record only, or both.

Setup in under 2 minutes

Copy a webhook URL, paste it in Cal.com, and you're done. No code required.

Supported events

Event	Sample notification
New booking `BOOKING_CREATED` 📅 New booking: Strategy Session Jane Doe booked Oct 28, 2026 10:00 UTC - jane.doe@example.com	📅 New booking: Strategy Session Jane Doe booked Oct 28, 2026 10:00 UTC - jane.doe@example.com
Booking needs confirmation `BOOKING_REQUESTED` ⏳ Booking request: Strategy Session Jane Doe asked for Oct 29, 2026 15:00 UTC - confirm or reject it in Cal.com	⏳ Booking request: Strategy Session Jane Doe asked for Oct 29, 2026 15:00 UTC - confirm or reject it in Cal.com
Booking rescheduled `BOOKING_RESCHEDULED` 🔁 Rescheduled: Strategy Session Jane Doe moved it to Oct 30, 2026 10:00 UTC	🔁 Rescheduled: Strategy Session Jane Doe moved it to Oct 30, 2026 10:00 UTC
Booking cancelled `BOOKING_CANCELLED` ❌ Cancelled: Strategy Session Jane Doe cancelled Oct 28, 2026 10:00 UTC - jane.doe@example.com	❌ Cancelled: Strategy Session Jane Doe cancelled Oct 28, 2026 10:00 UTC - jane.doe@example.com
Booking paid `BOOKING_PAID` 💰 Paid booking: $150.00 Jane Doe paid for Consultation on Oct 29, 2026 10:00 UTC	💰 Paid booking: $150.00 Jane Doe paid for Consultation on Oct 29, 2026 10:00 UTC
No-show updated `BOOKING_NO_SHOW_UPDATED` 🚫 No-show recorded jane.doe@example.com marked as no-show	🚫 No-show recorded jane.doe@example.com marked as no-show
Routing form submitted `FORM_SUBMITTED` 📝 Demo Intake Form submitted A new response to Demo Intake Form came in	📝 Demo Intake Form submitted A new response to Demo Intake Form came in
Webhook ping `PING` 🏓 Webhook ping Cal.com webhook successfully configured	🏓 Webhook ping Cal.com webhook successfully configured

How to connect Cal.com

Step 1: Create an Integration

Go to your organization’s Integrations page.
Click Add Integration and select Cal.com.
You’ll receive a unique Webhook URL. Copy it.

Step 2: Add the Webhook in Cal.com

In Cal.com, open Settings → Developer → Webhooks and add a new webhook.
Paste your Hookfire webhook URL as the Subscriber URL.
Under Event triggers, pick the events you want (for example Booking Created, Booking Cancelled and Booking Rescheduled).
Enter a long random string as the Secret, for example one made with openssl rand -hex 32, and keep a copy.
Leave Custom Payload empty. A custom template replaces the body Hookfire reads.
Save the webhook.

You can also add a webhook to a single event type from that event type’s Webhooks tab.

Step 3: Signing Secret

Paste the secret from Step 2 into the Signing Secret field on your Hookfire integration page. Cal.com signs each delivery with the X-Cal-Signature-256 header, and Hookfire refuses anything that does not match.

Step 4: Subscribe to Events

On your Hookfire integration page, toggle on the events you want to receive push notifications for. Tapping a booking notification opens the booking page on Cal.com.

Step 5: Test

Use Cal.com’s Ping test button on the webhook, which sends a PING event, or click Test next to an event on your Hookfire integration page.

Supported Events

Event	Description
`BOOKING_CREATED`	A booking was made
`BOOKING_REQUESTED`	A booking is waiting for your confirmation
`BOOKING_RESCHEDULED`	A booking moved to a new time
`BOOKING_CANCELLED`	A booking was cancelled
`BOOKING_PAID`	A paid booking was paid for
`BOOKING_NO_SHOW_UPDATED`	An attendee or host was marked as a no-show
`FORM_SUBMITTED`	A routing form was submitted
`PING`	Cal.com’s webhook test

Cal.com