Maton

Zoho Calendar

Access the Zoho Calendar API with managed OAuth authentication. Manage calendars and events with full CRUD operations, including recurring events and attendee management.

Reference

List Calendars

GET /zoho-calendar/api/v1/calendars

Example:

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/zoho-calendar/api/v1/calendars')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Response:

{
  "calendars": [
    {
      "uid": "fda9b0b4ad834257b622cb3dc3555727",
      "name": "My Calendar",
      "color": "#8cbf40",
      "textcolor": "#FFFFFF",
      "timezone": "PST",
      "isdefault": true,
      "category": "own",
      "privilege": "owner"
    }
  ]
}

Get Calendar Details

GET /zoho-calendar/api/v1/calendars/{calendar_uid}

Example:

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/zoho-calendar/api/v1/calendars/fda9b0b4ad834257b622cb3dc3555727')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Create Calendar

POST /zoho-calendar/api/v1/calendars?calendarData={json}

Required Fields:

  • name - Calendar name (max 50 characters)
  • color - Hex color code (e.g., #FF5733)

Optional Fields:

  • textcolor - Text color hex code
  • description - Calendar description (max 1000 characters)
  • timezone - Calendar timezone
  • include_infreebusy - Show as Busy/Free (boolean)
  • public - Visibility level (disable, freebusy, or view)

Example:

python <<'EOF'
import urllib.request, os, json, urllib.parse

calendarData = {
    "name": "Work Calendar",
    "color": "#FF5733",
    "textcolor": "#FFFFFF",
    "description": "My work calendar"
}

url = f'https://api.maton.ai/zoho-calendar/api/v1/calendars?calendarData={urllib.parse.quote(json.dumps(calendarData))}'
req = urllib.request.Request(url, method='POST')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Response:

{
  "calendars": [
    {
      "uid": "86fb9745076e4672ae4324f05e1f5393",
      "name": "Work Calendar",
      "color": "#FF5733",
      "textcolor": "#FFFFFF"
    }
  ]
}

Delete Calendar

DELETE /zoho-calendar/api/v1/calendars/{calendar_uid}

Example:

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/zoho-calendar/api/v1/calendars/86fb9745076e4672ae4324f05e1f5393', method='DELETE')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Response:

{
  "calendars": [
    {
      "uid": "86fb9745076e4672ae4324f05e1f5393",
      "calstatus": "deleted"
    }
  ]
}

List Events

GET /zoho-calendar/api/v1/calendars/{calendar_uid}/events?range={json}

Query Parameters:

ParameterTypeDescription
rangeJSON objectRequired. Start and end dates in format {"start":"yyyyMMdd","end":"yyyyMMdd"}. Max 31-day span.
byinstancebooleanIf true, recurring event instances are returned separately
timezonestringTimezone for datetime values

Example:

python <<'EOF'
import urllib.request, os, json, urllib.parse
from datetime import datetime, timedelta

today = datetime.now()
end_date = today + timedelta(days=7)
range_param = json.dumps({
    "start": today.strftime("%Y%m%d"),
    "end": end_date.strftime("%Y%m%d")
})

url = f'https://api.maton.ai/zoho-calendar/api/v1/calendars/fda9b0b4ad834257b622cb3dc3555727/events?range={urllib.parse.quote(range_param)}'
req = urllib.request.Request(url)
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Response:

{
  "events": [
    {
      "uid": "c63e8b9fcb3e48c2a00b16729932d636@zoho.com",
      "title": "Team Meeting",
      "dateandtime": {
        "timezone": "America/Los_Angeles",
        "start": "20260206T100000-0800",
        "end": "20260206T110000-0800"
      },
      "isallday": false,
      "etag": "1770368451507",
      "organizer": "user@example.com"
    }
  ]
}

Get Event Details

GET /zoho-calendar/api/v1/calendars/{calendar_uid}/events/{event_uid}

Example:

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://api.maton.ai/zoho-calendar/api/v1/calendars/fda9b0b4ad834257b622cb3dc3555727/events/c63e8b9fcb3e48c2a00b16729932d636@zoho.com')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Create Event

POST /zoho-calendar/api/v1/calendars/{calendar_uid}/events?eventdata={json}

Required Fields (in eventdata):

  • dateandtime - Object with start, end, and optionally timezone
    • Format: yyyyMMdd'T'HHmmss'Z' (GMT) for timed events
    • Format: yyyyMMdd for all-day events

Optional Fields:

  • title - Event name
  • description - Event details (max 10,000 characters)
  • location - Event location (max 255 characters)
  • isallday - Boolean for all-day events
  • isprivate - Boolean to hide details from non-delegates
  • color - Hex color code
  • attendees - Array of attendee objects
  • reminders - Array of reminder objects
  • rrule - Recurrence rule string (e.g., FREQ=DAILY;COUNT=5)

Example:

python <<'EOF'
import urllib.request, os, json, urllib.parse
from datetime import datetime, timedelta

start_time = datetime.utcnow() + timedelta(hours=1)
end_time = start_time + timedelta(hours=1)

eventdata = {
    "title": "Team Meeting",
    "dateandtime": {
        "timezone": "America/Los_Angeles",
        "start": start_time.strftime("%Y%m%dT%H%M%SZ"),
        "end": end_time.strftime("%Y%m%dT%H%M%SZ")
    },
    "description": "Weekly team sync",
    "location": "Conference Room A"
}

url = f'https://api.maton.ai/zoho-calendar/api/v1/calendars/fda9b0b4ad834257b622cb3dc3555727/events?eventdata={urllib.parse.quote(json.dumps(eventdata))}'
req = urllib.request.Request(url, method='POST')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Response:

{
  "events": [
    {
      "uid": "c63e8b9fcb3e48c2a00b16729932d636@zoho.com",
      "title": "Team Meeting",
      "dateandtime": {
        "timezone": "America/Los_Angeles",
        "start": "20260206T100000-0800",
        "end": "20260206T110000-0800"
      },
      "etag": "1770368451507",
      "estatus": "added"
    }
  ]
}

Update Event

PUT /zoho-calendar/api/v1/calendars/{calendar_uid}/events/{event_uid}?eventdata={json}

Required Fields:

  • dateandtime - Start and end times
  • etag - Current etag value (from Get Event Details)

Optional Fields: Same as Create Event

Example:

python <<'EOF'
import urllib.request, os, json, urllib.parse
from datetime import datetime, timedelta

start_time = datetime.utcnow() + timedelta(hours=2)
end_time = start_time + timedelta(hours=1)

eventdata = {
    "title": "Updated Team Meeting",
    "dateandtime": {
        "timezone": "America/Los_Angeles",
        "start": start_time.strftime("%Y%m%dT%H%M%SZ"),
        "end": end_time.strftime("%Y%m%dT%H%M%SZ")
    },
    "etag": 1770368451507
}

url = f'https://api.maton.ai/zoho-calendar/api/v1/calendars/fda9b0b4ad834257b622cb3dc3555727/events/c63e8b9fcb3e48c2a00b16729932d636@zoho.com?eventdata={urllib.parse.quote(json.dumps(eventdata))}'
req = urllib.request.Request(url, method='PUT')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Delete Event

DELETE /zoho-calendar/api/v1/calendars/{calendar_uid}/events/{event_uid}

Required Header:

  • etag - Current etag value of the event

Example:

python <<'EOF'
import urllib.request, os, json

req = urllib.request.Request('https://api.maton.ai/zoho-calendar/api/v1/calendars/fda9b0b4ad834257b622cb3dc3555727/events/c63e8b9fcb3e48c2a00b16729932d636@zoho.com', method='DELETE')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
req.add_header('etag', '1770368451507')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Response:

{
  "events": [
    {
      "uid": "c63e8b9fcb3e48c2a00b16729932d636@zoho.com",
      "estatus": "deleted",
      "caluid": "fda9b0b4ad834257b622cb3dc3555727"
    }
  ]
}

Attendees

When creating or updating events, include attendees:

{
  "attendees": [
    {
      "email": "user@example.com",
      "permission": 1,
      "attendance": 1
    }
  ]
}

Permission levels: 0 (Guest), 1 (View), 2 (Invite), 3 (Edit) Attendance: 0 (Non-participant), 1 (Required), 2 (Optional)

Reminders

{
  "reminders": [
    {
      "action": "popup",
      "minutes": 30
    },
    {
      "action": "email",
      "minutes": 60
    }
  ]
}

Actions: email, popup, notification

Recurring Events

Use the rrule field with iCalendar RRULE format:

{
  "rrule": "FREQ=DAILY;COUNT=5;INTERVAL=1"
}

Examples:

  • Daily for 5 days: FREQ=DAILY;COUNT=5;INTERVAL=1
  • Weekly on Mon/Tue: FREQ=WEEKLY;INTERVAL=1;BYDAY=MO,TU;UNTIL=20250817T064600Z
  • Monthly last Tuesday: FREQ=MONTHLY;INTERVAL=1;BYDAY=TU;BYSETPOS=-1;COUNT=2

Resources

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On this page

Reference
List Calendars
Get Calendar Details
Create Calendar
Delete Calendar
List Events
Get Event Details
Create Event
Update Event
Delete Event
Attendees
Reminders
Recurring Events
Resources