---
name: ProtocolLib
version: "5.4.0"
license: GPL-2.0
source: github
source_url: https://github.com/dmulloy2/ProtocolLib/releases/download/5.4.0/ProtocolLib.jar
acquisition: PLUGINS (direct GH URL)
purpose: Packet interception API — required by AuthMe (inventory hide) and GrimAC
---

Low-level packet API. Not on Modrinth — acquired via direct GitHub release URL. Required by AuthMe for `hideInventory` feature (hides inv from other players until logged in) and GrimAC for anticheat packet inspection.

## Notes

- Spiget source broken (reports "up to date" but jar absent) — direct GH URL is canonical
- Evaluate dropping in favour of PacketEvents-only stack (P3 deferred)