AutoInstaller
by MaxC300S
AutoInstaller lets a player on a Fabric client install the mods a server requires before joining, from a selection screen shown while connecting.
What it does
When a player connects to a server that uses the mod, a screen lists the mods the server asks for. Each entry can be installed directly from the screen, and the list can be returned to later. Players who already have a listed mod installed are detected automatically, so only the missing ones are offered.
Required mods are marked by server administrators, while others are shown as suggested optional mods and selected by default. Dependencies are fetched from Modrinth during installation, and the Play button stays disabled until every required mod is installed. A restart is needed after installing, and the mod is built for Fabric on 1.21.10, so both the server and every player need it, and Fabric API must be present.
The license is All rights reserved, so the code is not open source. The latest Fabric file is 1.0.0 for 1.21.10, dated 2026-01-13, on the beta channel.
Key features
Direct mod installation
Selected mods are installed from the mod list screen without visiting a website.
Required and optional mods
The server can mark mods as required and others as recommended, and the player sees both groups before joining.
Existing mod detection
Mods the player already has installed are recognized, so the list shows only what is still missing.
Dependency fetching
Dependencies of each selected mod are retrieved automatically from Modrinth during the install.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Use cases
Joining a modded server
A player who joins a server with required mods gets the list and installs them in one pass instead of hunting for each file.
Server setup
A server administrator lists the required and optional mods, so new players receive the same setup on connection.
Who it’s for: Server administrators who want players to install a fixed mod set, and players who join such servers and want the installs handled from the connection screen.
How it compares
Basic Server Mod Lists is also client and server, is open source under the CC0 1.0 Universal license, and covers 1.19 – 1.19.4 on Fabric. Server Fetcher is also client and server and open source, but under the GNU Affero General Public License v3.0 or later, with files for 1.20.1 – 1.21.1. AutoInstaller is not open source and targets only 1.21.10.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| AutoInstaller | Fabric | 1.21.10 | Client and server | 2026-01-13 |
| Basic Server Mod Lists | Fabric | 1.19 – 1.19.4 | Client and server | 2023-04-10 |
| Server Fetcher | Fabric | 1.20.1 – 1.21.1 | Client and server | 2025-04-29 |
Questions
Does AutoInstaller need Fabric API?
Does AutoInstaller have to be installed on the server?
Which Minecraft versions does AutoInstaller support?
In the catalog
AutoInstaller is one of 8,016 Management mods on ModsFinder, and one of 5,930 Management mods for Fabric. 15,569 mods support Minecraft 1.21.10.
Similar mods
What the author says
AutoInstaller Automatically prompt players to install server-required mods when joining. How It Works When a player connects to a server running AutoInstaller, they'll see a mod selection screen showing all mods the server requires or recommends. Players can: - Install Mods - Download and install selected mods…
Official listing
- Modrinth page
- modrinth.com/mod/autoinstaller
- Owner
- MaxC300S
- Published
- 2026-01-13
- Updated on Modrinth
- 2026-01-13
- Facts verified
- 2026-10-15