To request a balance, use the address:
https://smscentre.com/sys/balance.php?login=<login>&psw=<password>
The following parameters are passed to the server:
Option
The value
login
Customer Login.
psw
Client Password (you can add or change it on this page).
cur
Flag indicating whether the Client's currency name should be added to the server response.
fmt
Server response format:
0 or 1 – (default) as a string (250.80).
2 – in xml format.
3 – in json format.
Balance Request