Perform Zabbix API call, Postman, copy and paste from documentation

https://dl.pstmn.io/download/latest/win64

Set the right address:

http://10.1.10.40/api_jsonrpc.php

Or:

http://10.1.10.40/zabbix/api_jsonrpc.php

Documentation page:
https://www.zabbix.com/documentation/4.0/manual/api/reference/user/login