If you wish to access multiple calendar records you would use the MyCalendar model

For more details about using models see Using data models

For MyCalendar only one model is available:

MyCalendar

DEPRECATED - see MyCalendar list

Parameter	Description	Example	More info
API	The API area	calendar.json
Action	Not required
General	Yes	Parameters described in overview	user=user&password=user	Structure of an API call
Style	data or structure	style=modeldata	Using data models
Modelstructure	Name of model required	Modelstructure=MyCalendar	Using data models
`<datefrom>`	Filter by booking date	datefrom=2018-10-29
`<dateto>`	Filter by booking date	datefrom=2018-12-10
Response	Returned data	A JSON string containing the data

Example request:
Request for data (list of records using specified model)

http://<SERVER>/jsonapi/calendar.json?user=user&password=user&version=4&style=modeldata&modelstructure=MyCalendar&datefrom=2018-10-29&dateto=2018-12-10

Example response:

{
  "responsecode": 1,
  "responsestatus": "OK",
  "errorcode": 0,
  "errormessage": "",
  "totalrows": 143,
  "totalpages": 1,
  "responsemessage": "",
  "pagerows": 0,
  "pagenumber": 1,
  "success": true,
  "data": [
    {
      "calUuid": "FDA00A3205955D458DFAB0D1055D2B40",
      "calTimeStampModified": 1542891467,
      "calRecordVersionNumber": 1,
      "calColour": "FF6600",
      "calDurationDescription": "1 hour",
      "calTimesheets": 0,
      "calEndTimeDisplay": "12:00 AM",
      "calPhaseDescription": "SPV-3033",
      "calJobDescription": "SPV-3033",
      "calStartTimeDisplay": "11:00 PM",
      "calStartDate": "2018-10-29",
      "calStartTime": "23:00:00",
      "calInternalLink": 24742,
      "calWeakLink": 6532,
      "calJobHandler": 242,
      "calPhaseHandler": 242,
      "calTimesheetInternal": 0,
      "calPendingTimesheetInternal": 0,
      "calIsoDateTimeStart": "2018-10-29T23:00:00Z",
      "calIsoDateTimeEnd": "2018-10-29T24:00:00Z",
      "calDurationDecimalHours": 1,
      "calAllDay": false,
      "calRequestStatus": "",
      "calStatus": "",
      "calFeedback": "TODO",
      "calJobPhaseNumberSimple": "12300123.001",
      "calRequisitionSubject": "",
      "calClientName": "999 license"
    }
  ]
}

Note: Custom fields are not returned prior to Synergist 12.2