You can use this API to get speakers' lists in sorted order by their attributes.

You need to send an attribute like firstName, lastName, company & title as columnName in path parameter. If columnName doesn't match any attribute then it will default sort by firstName.

For sorting order, you need to send isAscending as true/false in the path parameter.

we need to pass the authentication key to authenticate users and it will require super admin, event admin, event staff level access.