Cross server Herochat for BungeeCord - Bukkit plugin.
http://www.spigotmc.org/resources/herochatbungeebridge-bukkit.188/
I use Maven so you can compile with that. I couldn't find a Maven repository for Herochat so if you're using Eclipse just add the .jar to your build path and you should be good. I used Herochat version 5.6.7.