This skill provides guidance for AI agents to interact with the Cal.com API v2, enabling scheduling automation, booking management, and calendar integrations.
Works with
AI-first code editor with Composer
Before installing skills in Cursor, ensure your development environment meets these requirements:
node --versioncalcom-apiExecute the skills CLI command in your project's root directory to begin installation:
Fetches calcom-api from calcom/cal.com and configures it for Cursor.
The CLI shows a list of agents. Use arrow keys and space to select Cursor:
Confirm successful installation by checking the skill directory location:
Restart Cursor to activate calcom-api. Access via /calcom-api in your agent's command palette.
We perform automated surface-level scans (Gen AI Scanner, Socket, Snyk) during installation. These checks detect common vulnerabilities but do not guarantee complete security. Always review skill source code and verify the publisher's reputation before production use.
Skills execute code in your environment. Always review source, verify the publisher, and test in isolation before production.
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This skill provides guidance for AI agents to interact with the Cal.com API v2, enabling scheduling automation, booking management, and calendar integrations.
All API requests should be made to:
https://api.cal.com/v2
| Environment Variable | Required | Description |
|---|---|---|
CAL_API_KEY |
Yes | Cal.com API key (prefixed with cal_live_ or cal_test_). Used as Bearer token for all API requests. Generate from Settings > Developer > API Keys. |
CAL_CLIENT_ID |
No | OAuth client ID for platform integrations that manage users on behalf of others. Sent as x-cal-client-id header. |
CAL_SECRET_KEY |
No | OAuth client secret for platform integrations. Sent as x-cal-secret-key header. |
CAL_WEBHOOK_SECRET |
No | Secret for verifying webhook payload signatures via the X-Cal-Signature-256 header. |
All API requests require authentication via Bearer token:
Authorization: Bearer cal_<your_api_key>
For detailed authentication methods including OAuth/Platform authentication, see references/authentication.md.
Event Types define bookable meeting configurations (duration, location, availability rules). Each event type has a unique slug used in booking URLs.
Bookings are confirmed appointments created when someone books an event type. Each booking has a unique UID for identification.
Schedules define when a user is available for bookings. Users can have multiple schedules with different working hours.
Slots represent available time windows that can be booked based on event type configuration and user availability.
This skill includes detailed API reference documentation for each domain:
| Reference | Description |
|---|---|
references/authentication.md |
API key and OAuth authentication, rate limiting, security best practices |
references/bookings.md |
Create, list, cancel, reschedule bookings |
references/event-types.md |
Configure bookable meeting types |
references/schedules.md |
Manage user availability schedules |
references/slots-availability.md |
Query available time slots |
references/calendars.md |
Calendar connections and busy times |
references/webhooks.md |
Real-time event notifications |
Before creating a booking, check available time slots:
GET /v2/slots?startTime=2024-01-15T00:00:00Z&endTime=2024-01-22T00:00:00Z&eventTypeId=123
See references/slots-availability.md for full details.
POST /v2/bookings
Content-Type: application/json
{
"start": "2024-01-15T10:00:00Z",
"eventTypeId": 123,
"attendee": {
"name": "John Doe",
"email": "[email protected]",
"timeZone": "America/New_York"
}
}
See references/bookings.md for all booking operations.
Receive real-time notifications for booking events:
POST /v2/webhooks
Content-Type: application/json
{
"subscriberUrl": "https://your-app.com/webhook",
"triggers": ["BOOKING_CREATED", "BOOKING_CANCELLED"]
}
See references/webhooks.md for available triggers and payload formats.
Book a meeting: Check slots -> Create booking -> Store booking UID
Reschedule: Get new slots -> POST /v2/bookings/{uid}/reschedule
Cancel: POST /v2/bookings/{uid}/cancel with optional reason
Prerequisites
Time Estimate
15-45 minutes depending on use case complexity
Steps
Common Pitfalls
✓ Do
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💡 Pro Tips
✓ Use when
Use when skill capabilities match your task, clear ROI on time saved, and you can validate outputs. Best for repetitive tasks, learning, and quality improvement.
✗ Avoid when
Avoid when task requires deep expertise you can't validate, involves sensitive decisions, or when learning process is more valuable than speed of completion.
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calcom-api has been reliable in day-to-day use. Documentation quality is above average for community skills.
Solid pick for teams standardizing on skills: calcom-api is focused, and the summary matches what you get after install.
We added calcom-api from the explainx registry; install was straightforward and the SKILL.md answered most questions upfront.
calcom-api fits our agent workflows well — practical, well scoped, and easy to wire into existing repos.
calcom-api has been reliable in day-to-day use. Documentation quality is above average for community skills.
calcom-api fits our agent workflows well — practical, well scoped, and easy to wire into existing repos.
We added calcom-api from the explainx registry; install was straightforward and the SKILL.md answered most questions upfront.
Solid pick for teams standardizing on skills: calcom-api is focused, and the summary matches what you get after install.
Registry listing for calcom-api matched our evaluation — installs cleanly and behaves as described in the markdown.
calcom-api reduced setup friction for our internal harness; good balance of opinion and flexibility.
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