AuthAgain

A client-side Minecraft mod (Forge 1.20.1 and NeoForge 1.21.1) that refreshes your Microsoft/Minecraft session and manages multiple accounts without restarting the game.

Downloads

• Latest release
• Nightly

Drop the jar into your mods/ folder.

Note: Nightly is built every night, but is not guaranteed to work so use it at your own risk. Breaking changes may be included in the nightly build without warning.

Requirements

• Forge: Minecraft 1.20.1, Forge 47.x, Java 17
• NeoForge: Minecraft 1.21.1, NeoForge 21.1.x, Java 21

Use the jar matching your loader: authagain-forge-*.jar (1.20.1) or authagain-neoforge-*.jar (1.21.1).

Usage

Open the Multiplayer screen and click the "Open AuthAgain" button in the top-left corner. From there, you can add accounts, reauthenticate, set an account active, or remove accounts.

Configuration

You can find the configuration file in config/authagain-client.toml, and it offers one option:

• persistAccounts (default true) - save accounts to config/authagain/accounts.json. If you would prefer to not save accounts, set this option to false.

Accounts are stored as plaintext JSON, which means that anyone who has access to your device and files will have your accounts.

Building from source

Building requires a JDK 21 toolchain.

./gradlew chiseledBuildAndCollect

This builds every loader/version variant and gathers the jars under build/libs/<version>/<loader>/. To only build a single variant, use ./gradlew :forge:1.20.1:build or ./gradlew :neoforge:1.21.1:build.

Running tests

To run the tests for every loader/version variant:

./gradlew chiseledTest

To run for only a single variant: ./gradlew :forge:1.20.1:test or ./gradlew :neoforge:1.21.1:test.

Acknowledgements

AuthAgain uses Stonecutter for multi-version source processing and Architectury Loom for loader support.

License

MIT