A quick note: the maximum amount of keys on keymaster is now 3 active keys per account in an effort to combat key resellers and be fair to all servers. If you have a valid reason to need more than 3 servers up at once, special access can be granted to exceed this limit. Fill out the wizard on here to get this access.
Existing keys will remain active, but you won’t be able to register any new keys above the limit of 3 keys.
This post has been updated on October 13th, 2020 to reflect the change to 3 keys per account.