Request:

{"jsonrpc":"2.0","method":"triggerprototype.create","id":3,"auth":"4b87cee40aa082bd58f799232a4c9aeb","params":{"description":"NEW ZBX","expression":"

{ZBX:ITEMPROTO.last(0)}

=0","status":0}}

Response:

{
"jsonrpc": "2.0",
"result":

{ "triggerids": [] }

,
"id": 3
}