Using Varest to connect PhpMyAdmin database

I´ve seen some tutorials about VaRest, but none of them explains how to connect the database from my PphpMyAdmin.

I know it´s possible to connect using the php files, but I´m not using any files, I´m using directly the database created in my phpMyAdmin.

Is it possible or only using MySQL plugin?

I´m looking for any way for free, once my database will be not big.

Thank you