Hand Shaker
by Suskese
With Hand Shaker, a server can check which mods a joining player runs and enforce allow and block lists on that basis.
What it does
The mod verifies mods and plugins across platforms. A client sends its active mod list to the server when a player joins, and the server checks that list against rules set in its configuration. Each rule can mark a mod as required, allowed or blacklisted, so a server can turn away players who run something it does not permit. The check works on Fabric and NeoForge clients, and on Paper, Purpur and Folia servers, which take the same mod list through the plugins folder.
Server owners, modpack developers and administrators who want to disconnect users running unwanted mods will find it most useful. HandLib must be installed alongside Hand Shaker. Installation covers the server and each player's game. It is released under the MIT License, is open source, and covers game versions 1.21 – 26.3.
Key features
Mod list reporting
On join, the client reports its active mods to the server, which can then decide whether to admit the player.
Configurable rules
Per-mod policies sort each mod into required, allowed or blacklisted, and server owners edit them in the config.
Cross-platform server support
Paper, Purpur and Folia servers run the same verification alongside Fabric and NeoForge clients.
Compatibility
Latest build for each game version and loader.
26.x5 of 5 versions with builds
1.21.x12 of 12 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Use cases
Modpack enforcement
Modpack developers can require a fixed set of mods and reject players who add others.
Public server policies
Server owners can block mods that give unfair advantages on their community server.
Who it’s for: Server owners and modpack developers who need to control which mods players run. Players on a server that uses Hand Shaker need the mod on their client, along with HandLib.
Questions
Does Hand Shaker need HandLib?
Does a player need Hand Shaker to join a protected server?
Which loaders does Hand Shaker support?
In the catalog
Hand Shaker is one of 8,016 Management mods on ModsFinder, and one of 5,930 Management mods for Fabric. 8,071 mods support Minecraft 26.3.
More from Suskese
Similar mods
What the author says
HandShaker is a cross-platform mod/plugin verification system for Minecraft servers and clients. It enables servers to detect which mods players are running and enforce mod restrictions with customizable policies. ✅ Supported/Working ⚠️ Issues/Unsupported ❌ Unsupported/Broken
Official listing
- Modrinth page
- modrinth.com/mod/hand-shaker
- Owner
- Suskese
- Published
- 2025-09-06
- Updated on Modrinth
- 2026-05-19
- Facts verified
- 2026-10-15