Im developing an aplication that need create users on the firebird
server and grant access.

I read that the only way to create or modify users is with the API, I
was looking in internet and didnt find any component that permit
access the API. I Find the Rfunc UDF but I see in their web page that
support firebird 1.0 and Im using the firebird latest release.

Is there is someone that can help me, I will appreciate.

PD: sorry for my english, is not very well

Best Regards
Diego Gandino