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Cal.com

Cal.com MCP connector

Cal.com API key · Available

Cal.com MCP Connector for AI Agents

Connect Claude, ChatGPT and other AI agents to Cal.com over MCP: read bookings, schedules and open slots for your connected Cal.com account.

Connect your Cal.com account, check upcoming meetings and find open slots. Choose which tools your AI can run. Booking, moving and cancelling meetings email the attendees.

Connect Cal.com Setup guide

7 days free · No card required

Cal.com

Cal.com

App connector

Available

Read bookings and open slots from your AI, using your Cal.com account.

3
Operations
2
Read
1
Write
3
In context
Authorization
Cal.com API key
Cataloged tools
3 discoverable
Connection scope
One Cal.com account per connection
Accounts
Connected account

Reviewed Sep 30, 2026

ClaudeChatGPT

Claude / ChatGPT

MCP client

ApexGenius route

Gateway context

Cal.com

Cal.com

Authorized session

Why the gateway is here

It keeps the Cal.com authorization, tools, and activity behind the same managed route you use for your other supported systems.

Ask it

What people ask Cal.com.

These questions use the Cal.com tools below. Start with a read after connecting your channel or account.

  • List my upcoming Cal.com bookings for this week. Do not book, move or cancel anything.Read
  • Show my Cal.com event types and their available time slots. Do not create a booking.Read

Tools

What Cal.com can do through ApexGenius.

The reviewed catalog contains these 3 Cal.com tools. Search by tool name, job, or access type.

Open the generated tool reference

Cal.com tools

cal_com_search_operations
Read

Discover the Cal.com operations reviewed and exposed by ApexGenius.

Cal.com tools

cal_com_read_operation
Read

Read your profile, event types, bookings, schedules and open time slots.

Cal.com tools

cal_com_write_operation
Write

Book, reschedule or cancel a meeting. Each one emails the attendees.

Connection model

How to connect Cal.com.

The Cal.com connection belongs to your signed-in account. Any Cal.com-native resources stay inside that provider.

Read connection details

Before you start

  • A Cal.com account.
  • An API key from Cal.com Settings > Developer > API keys.

1. Connect Cal.com to ApexGenius

  1. Create an API key in Cal.com. In Cal.com open Settings, then Developer, then API keys, and choose New. Name the key, turn on Never expires, and choose Create. Copy the key once. Without Never expires it stops working after 30 days.
    The full Cal.com settings page on Developer, API keys, with the account name blurred and red boxes marking the API keys menu item and the New button.
    Settings, then Developer, then API keys. New, marked in red, starts a key for your own account. The account name is blurred in this capture.Open full-size image (opens in a new tab)
    The full Cal.com Create an API key dialog with red boxes marking the Never expires switch and the Create button, and the account name blurred.
    Name the key, turn on Never expires, and choose Create. A key left on the 30-day default stops working after a month.Open full-size image (opens in a new tab)
  2. Open Cal.com in Connections. Choose Connect or Add connection.
  3. Enter the API key. Paste the key from Cal.com. ApexGenius supplies the API address and checks the key against your Cal.com profile.
  4. Check the saved connection. Save after validation succeeds. Review the Tools tab. Booking, rescheduling and cancelling email the attendees.
Connect Cal.com →

2. Choose your AI and finish setup

Each guide includes the AI setup and a first question for Cal.com.

ChatGPT setup →Claude setup →Codex setup →

Current governance

Know the account, tools, and result.

ApexGenius keeps the selected context and current tool surface visible, then records supported write activity for review.

Authorized context

The API key covers its Cal.com account. Requests use the fixed Cal.com API address.

Current tool surface

The read route refuses booking changes. Enabled writes run when called.

Reviewable activity

Booking, rescheduling and cancelling email attendees. Cancelling a meeting cannot restore the original booking.

Why a gateway

3 operations. Three tool definitions.

Your AI starts with three ApexGenius gateway tools. It discovers the Cal.com operations available to its authorization when a task needs them, then runs the selected operation through the gateway.

One saved provider connection

Connect Cal.com to ApexGenius, then authorize each AI client to use the saved connection with its own tool permissions.

Scoped per agent

Give one client read-only and the write operations never appear in its tool list at all.

Every call on the record

Which agent asked, what ran, and whether it succeeded, kept per connection for review.

Use Cal.com with your AI.

Choose your AI client for setup steps and examples using Cal.com.

FAQ

Questions people ask before connecting Cal.com.

What do I need to connect Cal.com?
A Cal.com account and an API key from Settings, Developer, API keys. ApexGenius checks it against your profile before saving.
Can my AI send booking emails?
Booking, rescheduling and cancelling through an enabled write tool email attendees. Start with reads and enable booking tools only when needed.
Does this use Cal.com hosted MCP?
ApexGenius uses the official Cal.com API v2 with your API key.
What should I test first?
Ask for your upcoming bookings and compare them with Cal.com. Reading bookings sends no emails.

MCP-compatible AI agents

ClaudeChatGPTCursorVS Code

Codex starts in Plugins in the ChatGPT desktop app. ChatGPT Chat and Work also use Plugins, with personal setup where Developer Mode is permitted. Each AI client has its own guide and authorization requirements.

App connections

Salesforcen8nConfluence

Salesforce keeps connection context. Other providers use your signed-in account.

Connect Cal.com. Start with a safe read.

Use the AI you already work in while ApexGenius keeps the app route visible.

Connect Cal.com

7 days free · No card required

Compatibility does not imply partnership.