To allow ReadyAPI to access your MySQL data, you need to install a JDBC driver.
To install the JDBC driver:
Download a ZIP archive from the official site.
Extract the JAR library from the archive (for example, mysql-connector-java-5.1.35_bin.jar) to the bin/ext directory of your ReadyAPI installation.
To learn more about installing database connection drivers in ReadyAPI, see Installing Database Drivers.