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Hidder project artwork

Modrinth · Minecraft mod

Hidder

a minecraft fabric mod that works with modseeker plugin to detect client side mods

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which Hidder release should I use?

Updated today
Latest stable file v3.0.1+mc1.21
Game version 1.21
Loader Fabric

Hidder v3.0.1+mc1.21 targets 1.21 with Fabric. Installation on the client is optional. Installation on the dedicated server is optional. All 1 required mods have matching files.

Where it goes

Is Hidder required on the client, server, or both?

Installation on the client is optional. Installation on the dedicated server is optional.

Client Optional
Dedicated server Optional
Loader for this release Fabric
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume

The source marks this as usable on both the client and server.

Understand client and server requirements Read the Minecraft installation guide

What else does Hidder v3.0.1+mc1.21 need?

v3.0.1+mc1.21. Change the file and its required mods may change too.

All 1 required mods have matching files

Install Fabric API first. We found matching files for this game-version and loader setup.

Fabric API Needed by Hidder v3.0.1+mc1.21
required
Matching file found Matched file: [1.21] Fabric API 0.102.0+1.21

We only count dependency files that match this setup. A file for another loader does not fill the gap.

Before you install it

Add Hidder without breaking your instance.

Built for Hidder v3.0.1+mc1.21. Pick another file and the loader, install side or required mods may change.

  1. 01

    Stick to this file

    Use v3.0.1+mc1.21. It targets 1.21 with Fabric; another release may have different loader, side or dependency requirements.

  2. 02

    Bring the mods it needs

    Install Fabric API first. We found matching files for this game-version and loader setup.

  3. 03

    Put it on the correct side

    Installation on the client is optional. Installation on the dedicated server is optional.

  4. 04

    Pick the file you checked

    Use the “Get this file” button beside v3.0.1+mc1.21. It opens that exact file at the source.

About this project

What does Hidder add?

Hidder — The Fabric client companion to ModSeeker.

Hidder is the Fabric client companion to ModSeeker. It reports your mods and, when requested, a detected launcher label to the server you join. The server owner decides which mods and launchers are allowed.

ModSeeker Paper plugin

ModSeeker is required on the server

Players install Hidder on their client. Server owners install the ModSeeker Paper plugin to use its reports and enforce their rules.

Get ModSeeker on Modrinth →

Features

Feature Description
Automatic verification Responds to the server's checks when you join, without player commands or a separate app.
Protected mod reports Signs and encrypts mod reports for the connected server.
Bundled native library Includes its Windows library; no separate OpenSSL or C++ runtime installation is needed.

Compatibility

Client platform: Windows x64 · Mod loader: Fabric · Dependency: Fabric API

Choose a Hidder JAR for your Minecraft version. Each supported target accepts Fabric Loader 0.19.3, 0.19.5 or 0.20.1; you do not need a different Hidder file for each of those Loader versions.

Minecraft version Java
1.21, 1.21.4, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11 21
26.1.2, 26.2, 26.3 25

The download labelled mc26.1 is for Minecraft 26.1.2. Fabric API must also match your Minecraft version. Other Fabric Loader versions are not supported by this release.

Getting started

  1. Create a Fabric instance for your Minecraft version and select one of the three supported Loader versions above.
  2. Download the matching Hidder JAR and Fabric API.
  3. Put both files in that instance's mods/ folder, then launch Minecraft.
  4. Join a server running ModSeeker v3. Verification happens automatically.

If a server rejects a mod or launcher, follow its disconnect message or contact the server owner. The server's policy determines what is allowed.

What Hidder sends

Reports go to the Minecraft server you join, through the existing game connection. Hidder does not use a separate telemetry service.

Data When it is sent
Mods IDs and version strings during mod verification, including entries found in declared bundled mod JARs.
Mod file hashes When the server requests advanced verification. These SHA-512 hashes let ModSeeker check approved files.
Launcher In response to a launcher challenge. ModSeeker requests this when launcher verification is enabled; the result is a launcher label or unknown.
Verification Hidder presence, version information, request IDs, signatures and verification errors.

Hidder reads mod JARs and launcher information locally. It does not upload JAR contents, local file paths or raw process details. It does not report hardware IDs, resource packs or shader packs.

Server administrators can read these reports. ModSeeker logs mod lists to its console by default, and server owners can also enable Discord notifications.

Help and documentation

Wiki · Installation and compatibility · Troubleshooting · Report a Hidder issue · Source

Build instructions are available in the Hidder source repository.

Licence

AGPL-3.0-or-later · Third-party licences

Project description from Modrinth.

Pick your setup

Hidder by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

12 available setups

Check the dependencies, then try the file in a copied instance before changing a world you care about.

Recent files

Hidder versions and loaders

32 of 32 releases match

Looking for an older file? The official Modrinth project page is in Resources.

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