How to retrieve information about campaigns

How to retrieve information about campaigns.json

curl -v -X GET https://api.leadconduit.com/campaigns/ABCDEFGHI/fields?api_key=limitedorfullapikey
 
HTTP/1.1 200 OK
Connection: close
Content-Type: application/json; charset=utf-8
 
{"count":3,
 "items":[{"name":"email",
           "label":"What is your email address?",
           "description":"The prospect's email address",
           "hidden":false,
           "primary_key":true,
           "required":true,
           "pattern":null,
           "field_index":0,
           "variant":"Email",
           "pattern_label":null,
           "min_length":3,
           "max_length":255,
           "max_num_values":1,
           "campaign_id":"ABCDEFGHI",
           "id":"123456789"},
           {...}, {...}]
}