Modrinth · Minecraft mod

Mods Type Checker

Checks if mods are client-side, server-side, or required on both.

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

Quick answer

Which Mods Type Checker release matches 1.8 Forge?

Updated 6 months ago

Best match for your filters 1.0.0

Game version 1.0, 1.1, 1.2.1

Loader Fabric, Forge, java-agent

Mods Type Checker 1.0.0 targets 1.0, 1.1, 1.2.1 with Fabric, Forge, java-agent. Do not install it on the client. It must be installed on the dedicated server. No extra mods listed for this file.

Where it goes

Is Mods Type Checker required on the client, server, or both?

Do not install it on the client. It must be installed on the dedicated server.

Client Not supported

Dedicated server Required

Loader for this release Fabric, Forge, java-agent

Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume

This file is marked server-only.

Understand client and server requirements Read the Minecraft installation guide

What else does Mods Type Checker 1.0.0 need?

1.0.0 on 1.8 Forge. Every mod below is checked against that same setup.

No extra mods listed for this file

This file does not list any required mods. Do not add a library just because a different file uses it.

This file does not list any required or optional mods.

Before you install it

Add Mods Type Checker without breaking your instance.

Built for Mods Type Checker 1.0.0 on 1.8 Forge. Pick another file and the loader, install side or required mods may change.

01
Stick to this file

Use 1.0.0. It targets 1.0, 1.1, 1.2.1 with Fabric, Forge, java-agent; another release may have different loader, side or dependency requirements.
02
Bring the mods it needs

This file does not list any required mods. Do not add a library just because a different file uses it.
03
Put it on the correct side

Do not install it on the client. It must be installed on the dedicated server.
04
Pick the file you checked

Use the “Get this file” button beside 1.0.0. It opens that exact file at the source.

About this project

What does Mods Type Checker add?

ModsChecker

CLI tool to audit Minecraft mods and flag client-only mods. It scans a mods folder, calculates hashes, and queries Modrinth and CurseForge to classify mods.

Гайд на русском: тут

Features

Modrinth lookup by SHA1.
CurseForge lookup by fingerprint (batch request).
Metadata detection from fabric.mod.json, META-INF/mods.toml, mcmod.info.
Client-only classification + heuristics.
Console summary and optional JSON report.
English/Russian output.

Requirements

Runtime: Java 8 to 25.
Build: JDK 17+ (Gradle 8.x requirement).

Build

./gradlew build

Resulting fat-jar:

build/libs/modschecker-1.0.0.jar

Run

java -jar modschecker-1.0.0.jar

Example output

Configuration file

On first run, a modschecker.properties file is created next to the jar (or in the working directory).

Example:

modsDir=./mods
curseforgeApiKey=
gameId=432
verbose=false
jsonOutput=
language=ru
pauseOnExit=true

CLI options

--modsDir <path>: Mods folder (default ./mods next to the jar or cwd).
--curseforgeApiKey <key>: API key (or env CURSEFORGE_API_KEY).
--gameId <int>: Default 432 (Minecraft).
--jsonOutput <path>: Save JSON report.
--verbose: Print extra diagnostics.
--language <lang>: ru or en.
--pause: Wait for Enter before exit (default on Windows).
--noPause: Do not wait for Enter.

Classification rules

A mod is considered client-only if:

Modrinth client_side=required and server_side=unsupported (client required), or
Modrinth client_side=required and server_side=optional (client preferred).

If Modrinth data is not available, a heuristic is used based on keywords in mod names.

Notes

CurseForge is used for identification only (no explicit client/server flags).
No infinite retries or loops; HTTP timeouts are used.

Project description from Modrinth.

Pick your setup