One For All Snitch
One For All Snitch sends a client's list of active mods to a server on connect, so server staff can check which mods a player runs.
What it does
On connection the mod works automatically, reading the client mods that are active and sending the full list straight to the server during the initial handshake. Nothing needs to be typed, and no commands are required to start the report. Because the work finishes during that handshake, it adds no measurable frame cost during play.
The data is meant for server administrators who want visibility into player setups and compatibility, and for modpack maintainers who need a server to confirm that players run the intended environment. A companion Sheriff server plugin enforces the checks, and the mod can act as a client-side bridge for Spigot, Paper or Velocity servers running One For All. Installation covers the server and each player's game. It is published for Fabric only, across 12 release versions 1.21 – 1.21.11, under All rights reserved and not open source.
Key features
Automatic mod reporting
Active client mods are detected and sent to the server on connect, with no manual step from the player.
Consistency checks
Server admins can confirm that players run required performance mods and that blacklisted client-side mods are absent.
Handshake-only operation
The mod works only while the connection is being set up, so it does not run during normal gameplay.
Sheriff plugin pairing
A Sheriff server plugin pairs with the mod to enforce the intended environment on Spigot, Paper or Velocity servers.
Compatibility
Latest build for each game version and loader.
1.21.x11 of 11 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Server integrity
Server administrators check that players connect with the mods the server expects before they play.
Modpack synchronization
Modpack maintainers confirm that players using a One For All server run the environment the pack was built for.
Who it’s for: Server administrators and modpack maintainers running One For All servers on Spigot, Paper or Velocity who want to verify client mod setups. Players connecting to such a server need the mod to pass the check.
Questions
Does One For All Snitch need to be installed on the server?
Which game versions does One For All Snitch support?
Does the mod affect frame rate during play?
In the catalog
One For All Snitch is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 19,862 mods support Minecraft 1.21.11.
Similar mods
What the author says
One For All: Snitch is a lightweight utility mod designed for server integrity and modpack synchronization. It acts as the client-side bridge for the One For All: Sheriff server plugin, ensuring that every player is running the intended environment.
Official listing
- Modrinth page
- modrinth.com/mod/one-for-all-snitch
- Owner
- LocalHost-OFA
- Published
- 2026-04-12
- Updated on Modrinth
- 2026-04-21
- Facts verified
- 2026-10-15