first of all, those are plugins, not API's :D
secondly, NewPlayerProtection is by far the best Free Plugin, it does not require to be installed on a fresh server and will work regardless of when you started your season
thirdly, pvp protection is supposed to offer character protection as well...
--Ability to change weapon damage values based on wild Dino/tamed Dino/Player
--uses a multiplier meaning this effect scales on top if you have a good blueprint
---does not touch structure damage only increasing/decreasing damage to characters
---will probably also work with modded weapons if...
you need to use MySQL
https://dev.mysql.com/downloads/mysql/ (Grab it From here)
and select c++ connector MySQL server 64bit and workbench x86
install it with legacy authentication then create a schema in the workbench corresponding to the name of the schema you have in your plugin config...