dmulloy2/ProtocolLib

Health v2 · maintenance only

Adoption not part of the score

1317 stars · 333 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

ProtocolLib is a Bukkit/Paper plugin and library that gives Minecraft server plugins read and write access to the Minecraft protocol. It provides an event-based packet listener API that abstracts away obfuscated Minecraft internals, letting plugins monitor, modify, cancel, or inject packets safely.

Use cases

• intercept and modify packets sent between a Minecraft server and clients
• cancel incoming or outgoing packets to block or alter behavior
• inject custom packets into the server-client stream
• build plugins that need protocol-level access without touching CraftBukkit internals
• keep packet-handling plugins working across Minecraft version updates
• disable or replace client-side effects like sounds via packet filtering

When to choose

• you are developing a Bukkit, Spigot, or Paper plugin that needs packet-level access
• you want a stable abstraction over obfuscated Minecraft protocol classes
• you need to avoid conflicts with other plugins hooking the same protocol classes
• you want an event-driven API for listening to packets similar to Bukkit's event system

When to avoid

• your task can be accomplished with the standard Bukkit/Spigot API alone
• you are not developing a Minecraft server plugin
• you need a client-side mod rather than a server-side plugin
• you require a non-Java platform

Facets

library · maturity active

middleware networking developer-tools plugin-system gaming-tools developer-tools jvm minecraft-protocol bukkit spigot paper packet-manipulation packet-listener minecraft

Member repositories

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