This API is used to get clients summary, client notes, ticket counts etc.
Please check example usage of Vision Helpdesk API
Operation : get_summary
Module : client
$postfields["vis_module"] = "client";
// This is the module under which you wish to perform operation
$postfields["vis_operation"] = "get_summary";
// This is the operation field
$postfields["vis_client_id"] = 44;
Below is example API URL to get clients summary, notes and ticket counts
http://visiononlinedemo.com/support/api/index.php? &vis_txtusername=admin &vis_txtuserpass=21232f297a57a5a743894a0e4a801fc3 &vis_module=client &vis_operation=get_summary &vis_client_id=44
OR use "access token" to get clients summary, notes and ticket counts
http://visiononlinedemo.com/support/api/index.php? vis_txttoken=WXprMk1UY3dZV1V6WWpZeU16RmpOelF3TVdReE5UWTJOVGMyTm1VeU4yUT0= &vis_module=client &vis_operation=get_summary &vis_client_id=44