We typically do not do that ourselves (generate tokens for STS meters), but we do integrate to other systems through APIs, e.g. we can integrate to TsmWeb or other PRISM systems through different APIs. Some meters need special manufacturer tokens for switching between prepaid and postpaid mode, or in some cases even to switch the breaker on and off when in postpaid mode. We can also set the load limiting functionality via a token (it is part of the core STS spec), when a breaker is switched to a value between 0 (off) and 1 (on). For those functionalities, we would need to be integrated to the external STS vending system, and the meter entity needs to be associated with the vending system entity on pnpscada.