Get API key

5.0:

curl -s -i -X POST -H 'Content-Type: application/json-rpc' -d '{"jsonrpc":"2.0","method":"user.login","params":{"user":"Admin","password":"zabbix"},"id":1,"auth":null}' http://127.0.0.1:150/api_jsonrpc.php | grep -E -o "([0-9a-f]{32,32})"

4.4:

curl -s -i -X POST -H 'Content-Type: application/json-rpc' -d '{"jsonrpc":"2.0","method":"user.login","params":{"user":"Admin","password":"zabbix"},"id":1,"auth":null}' http://127.0.0.1:144/api_jsonrpc.php | grep -E -o "([0-9a-f]{32,32})"