NeoAC
by APie357
NeoAC is an anticheat for modded Minecraft servers running NeoForge, and it keeps players without the required mods out of a server.
What it does
NeoAC checks the mod IDs that connecting clients report against the server's list and refuses logins when required mods are missing. Both the server and every player need it, since the check runs as the connection is made. The mod is released under the MIT License and is open source, and files target 1.21.1 only.
Key features
Mod ID hash checks
Connecting clients are compared against the server's mod list by hashed mod IDs.
Login refused without required mods
A player who lacks the mods the server expects is kept from joining that server.
Timed checks
The mod can time its checks, so verification is not limited to a single moment.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Questions
Does NeoAC have to be installed on the server?
Which NeoForge version does NeoAC support?
In the catalog
NeoAC is one of 8,016 Management mods on ModsFinder, and one of 2,689 Management mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
Similar mods
What the author says
A: If you ask one more time I will break your funny bone. - Q: Can you backport this to 1.x? A: NO. I do not want to rewrite all the network code (it isn't much but it will be more in the future). - Q: Can you update this to 1.x?
Official listing
- Modrinth page
- modrinth.com/mod/neoac
- Owner
- APie357
- Published
- 2025-06-16
- Updated on Modrinth
- 2025-06-18
- Facts verified
- 2026-10-15