is there a way to use the api offline cause i will be on a plane for the next couple of days want to still code spigot plugins
Yes... just add Spigot to your build path and you'll be fine. Also, who stays on a plane for a few days?
going across the world from US to Asia for vacation the flight is normally a day and half but feels alot longer also i meant something like https://hub.spigotmc.org/javadocs/bukkit/
