GET api/2.0/crm/task/category/1234
Host: yourportal.r7-office.ru
Content-Type: application/json
Accept: application/json

{
  "status": 0,
  "response": {
    "relativeItemsCount": 1,
    "imagePath": "path to image",
    "title": "Appointment",
    "description": "",
    "sortOrder": 2,
    "id": 30
  }
}

text/xml

<result>
  <status>0</status>
  <response>
    <relativeItemsCount>1</relativeItemsCount>
    <imagePath>path to image</imagePath>
    <title>Appointment</title>
    <description></description>
    <sortOrder>2</sortOrder>
    <id>30</id>
  </response>
</result>