Authenticator
by UsainSrht
Authenticator is a client-side Fabric mod that generates two-factor authentication codes inside Minecraft, so players can keep their 2FA secrets in the game.
What it does
Authenticator works as a simple two-factor authentication tool. A player saves a secret key with the create command, and the mod later produces the matching one-time code through the getCode command. Pressing G opens the interface by default, where the saved entries are listed and their codes shown.
Only the client needs the mod, so players can use it in single-player or on a multiplayer server without the server owner installing anything. Authenticator is open source under the MIT License and its source code and issue tracker are publicly available.
Files are published for Fabric only, covering the 1.19.4 and 1.20.4 game versions, with 1.0.2 for 1.20.4 as the latest file. The mod is not built for Forge, though its description mentions Forge compatibility. Its first release dates from March 2023 and the latest update from March 2024.
Key features
Saved secret keys
A secret key is stored under a name with the create command, so the entry can be reused later without re-entering it.
One-time code retrieval
The getCode command returns the current two-factor code for a saved entry, matching what a service sends for login.
Keyboard shortcut for the interface
Pressing G opens the graphical interface by default, where saved codes can be viewed without typing commands.
Simple command set
Two commands cover the workflow: one to save a secret and one to fetch a code, with no extra configuration needed.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Logging in while playing
A player who keeps accounts protected by two-factor authentication can read the current code in game instead of switching to a phone app.
Single-player and multiplayer use
Because the mod is client-side only, the same setup works in a private world or on any server that does not run it.
Who it’s for: Players who use two-factor authentication on accounts and want to generate the codes from inside Minecraft. The mod suits anyone who accepts storing the secret key on the game client.
Questions
Does Authenticator need to be installed on the server?
Which loader does Authenticator support?
Which game versions have files for Authenticator?
How is a secret key saved in Authenticator?
In the catalog
Authenticator is one of 8,499 Technology mods on ModsFinder, and one of 4,201 Technology mods for Fabric. 13,907 mods support Minecraft 1.20.4.
Similar mods
What the author says
Simple 2 factor authentication (2fa) mod. This is a Fabric mod will NOT work with Forge.
Official listing
- Modrinth page
- modrinth.com/mod/authenticator
- Owner
- UsainSrht
- Published
- 2023-03-23
- Updated on Modrinth
- 2024-03-10
- Facts verified
- 2026-10-15