Vote
Voting pushes SwordFun up the server lists, which is how most new players find it. It costs nothing and takes about a minute.
Voting is not switched on yet
SwordFun is not listed on the Minecraft server lists yet, so there is nowhere to vote and nothing would be paid out if you did. This page will fill in on its own the moment the listings go up.
Until then, the fastest way to help the server is to bring someone with you. Share swordfun.org or send them to the Discord.
What you get
The reward has not been configured on the server yet. The Vote Crate sits at spawn ready for it, and its keys are the one crate key deliberately kept out of the store so that voting stays the way to earn them.