n8n-nodes-caldav-calendar

n8n-nodes-caldav-calendar

A simple n8n community node for working with CalDAV calendars.

Install | Compatibility | Usage | Configuration | Operations | Development

🚀 Features

• Dynamic calendar loading - automatically fetch available calendars from server
• Smart calendar names - display user-friendly names instead of technical paths
• Calendar type detection - automatically identify calendar types (Events/Tasks/Calendar)
• Get calendar events for a specific date
• Create new events in calendar
• Delete events by UID
• Connect to any CalDAV server (Google Calendar, Apple iCloud, NextCloud, etc.)
• Basic authentication (username/password)
• Proper error handling - informative messages when no events found
• ISO date formats with timezone support
• 🤖 AI Tool support - can be used as a tool in AI Agent node

Installation

npm install n8n-nodes-caldav-calendar

Or via n8n UI:

• Go to Settings > Community Nodes
• Enter n8n-nodes-caldav-calendar
• Click Install

Compatibility

• n8n version: 0.190.0 or later
• Node.js: 18.10.0 or later
• CalDAV servers: RFC 4791 compliant servers

Tested CalDAV Servers

Server	Status	Notes
Google Calendar	✅ Working	Use app passwords
Apple iCloud	✅ Working	Standard authentication
NextCloud	✅ Working	Standard authentication
Yandex Calendar	⚠️ Limited	Artificial 60s delays for WebDAV

Configuration

Creating CalDAV API Credentials

• In n8n, go to Credentials
• Create new credentials of type "CalDAV API"
• Fill in the fields:
  • Server URL: Your CalDAV server URL (e.g., https://cal.example.com/caldav/)
  • Username: Your username
  • Password: Your password

Popular CalDAV Server URLs

Google Calendar

• Server URL: https://apidata.googleusercontent.com/caldav/v2/
• Use app password instead of main password

Apple iCloud

• Server URL: https://caldav.icloud.com/

NextCloud

• Server URL: https://your-nextcloud.com/remote.php/dav/calendars/USERNAME/

⚠️ Yandex Calendar CalDAV (LIMITATIONS)

• Server URL: https://caldav.yandex.ru/
• WARNING: Yandex artificially slows down WebDAV operations (60 seconds per MB since 2021)
• Symptoms: frequent 504 timeouts, especially when creating/updating events
• Recommendations:
  • Use only for reading events
  • Consider switching to Google Calendar or Nextcloud
  • Wait several minutes between retries on errors

📋 Usage

Standard Workflow Usage

• Add CalDAV node to your workflow
• Select the created credentials
• Choose calendar from dropdown list 📅 (automatically loaded from server)
• Select date to get events
• Execute workflow

🤖 Using as AI Tool

The CalDAV node supports usage as an AI Tool for AI Agent:

• Add AI Agent node to your workflow
• In Tools section, select CalDAV node
• AI agent can independently query calendar events when users ask about plans, meetings, or events

Example AI agent questions:

• "What events do I have tomorrow?"
• "What's scheduled for this week?"
• "Are there any meetings on Monday?"
• "Create a team meeting tomorrow at 3 PM"
• "Delete the event with UID xyz789"

📖 Operations

Get Events

Retrieves calendar events for a specific date.

Parameters:

• Calendar Name or ID - select calendar from list
• Date - date to get events for (ISO 8601 format)

Returns: Array of events with fields uid, summary, description, location, dtStart, dtEnd, url, etag

Create Event

Creates a new event in the calendar.

Parameters:

• Calendar Name or ID - select calendar from list
• Event Title - event title (required)
• Start Date and Time - start date and time (required)
• End Date and Time - end date and time (required)
• Description - event description (optional)
• Location - event location (optional)

Returns: Created event object with uid, title, startDateTime, endDateTime, description, location, url, etag, success, message

Delete Event

Deletes an existing event by UID.

Parameters:

• Calendar Name or ID - select calendar from list
• Event UID - unique event identifier to delete (required)

Returns: Object with deletion confirmation including uid, url, success, message, deletedAt

✨ New Features

• Automatic calendar selection: no more manual calendar path entry
• User-friendly names: instead of /calendars/user/events-123/ shows My Calendar (Events)
• Informative errors: when no events found, node reports exact reason

Example Output

{
  "uid": "[e-mail]",
  "summary": "Meeting with team",
  "description": "Weekly team meeting",
  "dtStart": "20241201T100000Z",
  "dtStartISO": "2024-12-01T10:00:00.000Z",
  "dtEnd": "20241201T110000Z", 
  "dtEndISO": "2024-12-01T11:00:00.000Z",
  "url": "https://cal.example.com/event/123",
  "etag": "\"123456789\"",
  "calendarData": "BEGIN:VCALENDAR..."
}

🧪 Testing

# Run tests
npm test

# Install test dependencies
npm install

Tests verify:

• Compiled node structure
• Package configuration
• Error handling
• Date and event parsing

Development

# Install dependencies
npm install

# Build
npm run build

# Development with hot reload
npm run dev

# Run tests
npm test

🔧 Release History

v2.0.1

• ✅ 🤖 AI Tool support - integration with AI Agent node
• ✅ Improved compatibility with modern n8n versions

v1.0.3

• ✅ Dynamic calendar loading via loadOptionsMethod
• ✅ Improved calendar names with automatic type detection
• ✅ Proper error handling with NodeOperationError
• ✅ Automated tests with mocha
• ✅ TypeScript support and compilation

API Reference

This node implements the CalDAV protocol as specified in RFC 4791.

Supported CalDAV Operations

• PROPFIND - for calendar discovery
• REPORT - for event querying
• PUT - for event creation/updates
• DELETE - for event deletion

Authentication

Currently supports HTTP Basic Authentication. OAuth support may be added in future versions.

License

MIT

Contributing

Contributions are welcome! Please read our contributing guidelines and submit pull requests to our GitHub repository.

Support

• GitHub Issues
• CalDAV RFC 4791
• n8n Community