Adding this ticket to Bugs and Issues as this should be implemented now and not in a future version.

There needs to be an API call to query the version of the server. The call could return information like the version of the API and possibly the Zabbix server itself as it is possible that the API may not track the Zabbix server as quickly or closely. However it is implemented is not important to me as long as it is documented well and adhered to.

This function will be of tantamount importance to authors of API stacks as it would then be possible for the author of the API stack to check compatibility with the API available before making a call. The check version call should also not require any authentication,