spigot topic
Debuggery
A small plugin designed to expose API values at runtime.
NotQuests
Flexible, open & solid paper Quest Plugin [with GUI]
ChangeSkin
Allows your players to change their skin by command
go-mcproto
Minecraft Protocol implementation in Go
FastBoard
Lightweight packet-based scoreboard API for Bukkit plugins, with 1.7.10 to 1.20.6 support.
FastInv
Lightweight and easy-to-use inventory API for Bukkit plugins.
FastParticles
Lightweight particle API for Bukkit plugins, with 1.7.10 to 1.20.6 support.
ConnectorPlugin
Plugin to simplify communication between multiple Minecraft servers (and proxies) in a network. Supports plugin messages, redis and MQTT (e.g. using RabbitMQ or Google Cloud. MQTT is untested rn!). Re...
AnnouncerPlus
Announcement and Join/Quit message plugin with support for permissions. Supports Hex colors, gradients, Achievements, Titles, Action Bars, and more. Uses MiniMessage for text formatting
DeluxeAsyncJoinLeaveMessage
https://www.spigotmc.org/resources/deluxeasyncjoinleavemessage-fully-optimized-async-everything-open-source.88129/