Compatibility
Minecraft: Java Edition
Platforms
Supported environments
Tags
Creators
Details
FairCount
FairCount is a lightweight anti-cheat and integrity verification mod designed for Fabric. It strictly inspects and verifies client-side installed mods and active resource packs, enforcing a fair and regulated gameplay environment on multiplayer servers.
Notice: This mod is currently in active development. Please test thoroughly in a staging environment before deploying to production servers.
Links
- Modrinth: View on Modrinth
- CurseForge: View on CurseForge
- Source Code: GitHub
- Issue Tracker: GitHub Issues
- Community: Discord Server
Features
- Strict Mod Whitelisting: Automatically validates connecting players' mod lists against a server whitelist. Unauthorized mods result in an immediate disconnect with clear kick reasons.
- SHA-256 Checksum Verification: Validates the SHA-256 hash of JAR files in addition to Mod IDs, preventing spoofed Mod IDs or tampered cheat client injection.
- Resource Pack Inspection & Hashing: Detects and restricts unauthorized external resource packs (such as X-Ray / ESP packs) with optional SHA-256 hash checking.
- Deep Nested Mod Detection (JiJ): Scans both standalone JAR files and internal Jar-in-Jar dependencies on the client.
- Mandatory Client Enforcement: Automatically disconnects players within 3 seconds if they do not have FairCount installed.
- Automatic Fabric API Pass: Sub-modules starting with
fabric-are automatically allowed without manual configuration. - OP & Player Bypass List: Server operators and players registered by UUID can bypass inspection checks.
- In-Game Hot-Reload Commands: Manage allowed mods, resource packs, and bypass players directly via commands without restarting the server.
Installation & Requirements
FairCount must be installed on both the Server and Client.
- Requires Fabric Loader and Fabric API.
- Place FairCount into the
modsfolder of both the server and client. - Start the server once to automatically generate the configuration files under
config/faircount/.
Commands (Requires OP)
Mod Management
/faircount mod add <mod_id>- Whitelist a mod ID (all versions allowed)./faircount mod add <mod_id> <sha256>- Whitelist a mod with a specific SHA-256 checksum./faircount mod add all- Whitelist all mods currently loaded by connected clients./faircount mod remove <mod_id>- Remove a mod from the whitelist./faircount mod remove <mod_id> <sha256>- Remove a specific hash entry./faircount mod remove all- Clear all whitelisted mods./faircount mod list- List all whitelisted mods and registered hashes.
Resource Pack Management
/faircount pack add <pack_name>- Whitelist a resource pack by name./faircount pack add <pack_name> <sha256>- Whitelist a resource pack with a specific SHA-256 checksum./faircount pack add all- Whitelist all resource packs currently loaded by connected clients./faircount pack remove <pack_name>- Remove a resource pack from the whitelist./faircount pack remove <pack_name> <sha256>- Remove a specific hash entry./faircount pack remove all- Clear all whitelisted resource packs./faircount pack list- List all allowed resource packs.
Player Bypass Management
/faircount player add <player_name|uuid>- Add a player to the bypass list./faircount player remove <player_name|uuid>- Remove a player from the bypass list./faircount player list- List all bypassed players.
Configuration Files (config/faircount/)
mods.json: Whitelisted Mod IDs and their allowed SHA-256 hashes.resource_packs.json: Whitelisted resource pack names and allowed SHA-256 hashes.players.json: UUID list of players exempted from checks.