LimboAuth Client Mod
by hevav
LimboAuth Client Mod lets a player log in to a LimboAuth server automatically, using a session token that the server issues and the client stores.
What it does
When a player joins a server that runs the LimboAuth plugin, the server asks the client for its session token and the client sends it back. The server generates the token and wraps it in a structure that records when it was issued. The client saves the token it receives to a config file, so later joins can reuse it without typing a password.
The mod also accepts a session token set through a custom launcher, which lets a player choose the session used by the game. Architectury API is required to run it. The mod is published for Fabric and Forge across 20 release versions, 1.14.4 – 1.19.4, and its files are licensed under the GNU Affero General Public License v3.0 or later, so the code is open source. Either side can run it, and neither needs it: a client mod is enough to use the auto-login, and a test server named LimboAuth Test is available for checking the flow.
Key features
Automatic login
The client answers the server's session token request on join, so a returning player does not have to log in again by hand.
Server-issued tokens
The server creates each token and stores the issue timestamp alongside it, so the client receives a token tied to a specific time.
Saved token config
The client writes the token it receives to a config file, which keeps the login available across game restarts.
Custom launcher session
A player can set their own session token through a custom launcher, as an alternative to the token the server issues.
Compatibility
Latest build for each game version and loader.
1.19.x5 of 5 versions with builds
1.18.x3 of 3 versions with builds
1.17.x2 of 2 versions with builds
1.16.x6 of 6 versions with builds
1.15.x3 of 3 versions with builds
1.14.x1 of 1 version with builds
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
Who it’s for: The mod suits players who join LimboAuth servers regularly and server owners who want to test the token exchange with a matching client. Players who only use offline servers have no need for it.
How it compares
Player Events is server-side only, open source under the MIT License, and published for Fabric and Quilt across 1.16 – 1.20.1, so it runs on the server and not on the player's side. NoSession is client-side only, open source under the MIT License, and published for Forge 1.8.9 only. RpSessionMod is client-side only, open source is not provided, and its files cover Fabric 1.20.5 – 26.2.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| LimboAuth Client Mod | Fabric and Forge | 1.14.4 – 1.19.4 | Client or server, optional | 2023-01-16 |
| Player Events | Fabric and Quilt | 1.16 – 1.20.1 | Server-side only | 2023-07-04 |
| NoSession | Forge | 1.8.9 | Client-side only | 2023-12-25 |
| RpSessionMod | Fabric | 1.20.5 – 26.2 | Client-side only | 2026-06-30 |
Questions
Does LimboAuth Client Mod need Architectury API?
Does the mod have to be installed on the server?
Which loaders does the mod support?
Where is the source code available?
In the catalog
LimboAuth Client Mod is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 9,374 mods support Minecraft 1.19.4.
Similar mods
What the author says
1) The server makes a token - a struct that contains an issue timestamp 2) The server signs this token with a private verify key (which you can see in the LimboAuth config) 3) The server sends the token to the client, the client saves it to the config file 4) When player joins the server, servers asks client if he…
Official listing
- Modrinth page
- modrinth.com/mod/limboauth-clientmod
- Owner
- hevav
- Published
- 2023-01-16
- Updated on Modrinth
- 2023-01-16
- Facts verified
- 2026-10-15