This guide explains how to integrate cal.com’s calendar availability checking functionality into your application. This integration allows you to check available time slots for your cal.com event types.

1

Create a Cal.com Account

  1. Visit cal.com to create an account
2

Configure Event Type

  1. Navigate to the “Event Types” section in your cal.com dashboard
  2. Click “New”
  3. Configure your event settings
  4. Click “Save” to create the event type
3

Obtain Required Credentials

Get Event Type ID

  1. Open your created event type
  2. Look at the URL in your browser
  3. The event type ID is the number in the URL Example: https://app.cal.com/your-username/event-type/1427703 In this case, 1427703 is your event type ID

Get API Key

  1. Go to “Settings” in your cal.com dashboard
  2. Navigate to “Developer” section
  3. Click on “API Keys” to retrieve your API key
4

Configure in Retell

  1. Enter the following details:
    • API Key from cal.com
    • Event Type ID
    • Tool description (example: “Checks availability for 30-minute consultation calls”)
  2. Click “Save” to complete the setup

Video tutorial: