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Agenta

A authserver and skin fix for legacy versions of minecraft.
by hanro50
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5,351 downloads
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Updated Jun 30, 2026
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# Agenta
A authserver and skin fix for legacy versions of minecraft.

# Compatibility
Requires Java 7. (In theory this can be built for Java 5, but I lack the build tools required for that.)
If running this on Java 12 and newer, please add the following JVM argument: ```--add-exports java.base/sun.net.www.protocol.http=ALL-UNNAMED```

- As a mod: The same Jar will run on forge, bukkit and Risugami's modloader for Minecaft versions Alpha 1.0.4 to Minecraft release 1.7.10 (These are merely the versions I tested)
- As a JavaAgent: Add the following JVM argument: ```-javaagent:{path}/agent.jar``` (replace path with the location of the agent.jar)
- Inline/static: In this setup, Agenta is essentially taking over the role of Launching minecraft. Add the following JVM argument and change out ```{mainClass}``` as needed depending on which minecraft version you are launching: ```-Dagenta.main.class={mainClass}```
- As a Bukkit plugin (Tested with bukkit for Minecraft Beta 1.3+)


# JVM settings
Non of these are needed to launch Agenta. The available contexts are
"*" => ALL
"static" => When Agenta is launched as the main class with the expectation of chain-loading another class manually.

 

Context property Argument description
* agenta.assets.fml -Dagenta.assets.fml={value} A link to an archive Agenta should forward legacy forge download requests to
* agenta.assets.index -Dagenta.assets.index={value} The URL for the asset index Agenta should use as a base
* agenta.assets.routing -Dagenta.assets.routing=true Should agenta reroute requests the mojang's asset servers? (default: "true")
* agenta.assets.url -Dagenta.assets.url={value} The URL for the resource server Agenta should pull assets from
config agenta.config.version   The version of agenta that generated a set config file. Will be used to detect if agenta should upgrade a set config file
* agenta.prt.color -Dagenta.prt.color=false Pass the value 'false' to disable colour printing.
* agenta.prt.debug -Dagenta.prt.debug=false Should agenta show debug messages?
* agenta.save.file -Dagenta.save.file=saves.json When handling saving for certain versions of old Minecraft that relied on long dead mojang endpoints, what should agenta call the save file? (default: "saves.json")
* agenta.skin.resize -Dagenta.skin.resize=true Should agenta try to resize skins from 64x64 to 64x32 for better compatibility? (default: "true")
static agenta.main.class -Dagenta.main.class={value} The class Agenta should try to load next when running in static/inline mode

 

# Fixes
- Skin support for pre 1.7.10 versions
- Cape support for pre 1.7.10 versions
- Sound for versions of the game that predate 1.6
- World savings for certain pre-alpha builds (experimental)
- Forge 1.5.2 being unable to fetch it's library files (experimental)

# Note
The same jar will work for almost every version of minecraft that predates Release 1.8
agenta-1.9.1.jar
MC 1.5.3, 1.7.4, 1.7.7, 1.7.6, 1.7.5, 1.4.6, 1.6.1, 1.0, Client, Risugami's ModLoader, 1.7.3, 1.7.2, 1.4.4, 1.0.0, Fabric, 1.2.4, 1.7.9, 1.4.5, 1.3.2, Forge, 1.5.2, 1.5.1, 1.1
Release 2026-03-29 Get
agenta-1.8.6.jar
MC 1.7.6, 1.5.3, 1.7.4, 1.7.7, 1.7.5, 1.4.6, 1.6.1, 1.0, 1.7.9, Fabric, 1.2.4, Client, Risugami's ModLoader, 1.7.3, 1.7.2, 1.4.4, 1.0.0, Beta 1.7.3, Forge, 1.5.2, 1.5.1, 1.1
Release 2025-05-10 Get
agenta-1.8.5.jar
MC 1.7.6, 1.5.3, 1.7.4, 1.7.7, 1.7.5, 1.4.6, 1.6.1, 1.0, 1.7.9, Fabric, 1.2.4, Client, Risugami's ModLoader, 1.7.3, 1.7.2, 1.4.4, 1.0.0, Beta 1.7.3, Forge, 1.5.2, 1.5.1, 1.1
Release 2024-07-20 Get
agenta-1.8.3.jar
MC 1.7.6, 1.5.3, 1.7.4, 1.7.7, 1.7.5, 1.4.6, 1.6.1, 1.0, 1.7.9, Fabric, 1.2.4, Client, Risugami's ModLoader, 1.7.3, 1.7.2, 1.4.4, 1.0.0, Beta 1.7.3, Forge, 1.5.2, 1.5.1, 1.1
Release 2024-07-15 Get
agenta-1.8.4.jar
MC 1.7.6, 1.5.3, 1.7.4, 1.7.7, 1.7.5, 1.4.6, 1.6.1, 1.0, 1.7.9, Fabric, 1.2.4, Client, Risugami's ModLoader, 1.7.3, 1.7.2, 1.4.4, 1.0.0, Beta 1.7.3, Forge, 1.5.2, 1.5.1, 1.1
Release 2024-07-15 Get
agenta-1.8.2.jar
MC 1.7.6, 1.5.3, 1.7.4, 1.7.7, 1.7.5, 1.4.6, 1.6.1, 1.0, 1.7.9, 1.2.4, Client, Risugami's ModLoader, 1.7.3, 1.7.2, 1.4.4, 1.0.0, Beta 1.7.3, Forge, 1.5.2, 1.5.1, 1.1, 1.2.1
Release 2024-07-15 Get
agenta-1.8.1.jar
MC 1.7.6, 1.5.3, 1.7.4, 1.7.7, 1.7.5, 1.4.6, 1.6.1, 1.0, 1.7.9, 1.2.4, Client, Risugami's ModLoader, 1.7.3, 1.7.2, 1.4.4, 1.0.0, Beta 1.7.3, Forge, 1.5.2, 1.5.1, 1.1, 1.2.1
Release 2024-07-14 Get
agenta-1.8.jar
MC 1.7.6, 1.5.3, 1.7.4, 1.7.7, 1.7.5, 1.4.6, 1.6.1, 1.0, 1.7.9, 1.2.4, Client, Risugami's ModLoader, 1.7.2, 1.4.4, 1.0.0, Beta 1.7.3, Forge, 1.5.2, 1.5.1, 1.1, 1.2.1, Beta 1.6.6
Release 2024-07-13 Get
agenta-1.7.jar
MC 1.4.6, 1.6.1, 1.0, 1.2.4, Client, 1.4.4, 1.0.0, Forge, 1.5.2, 1.5.1, 1.1, 1.2.1, 1.6.4, 1.4.5, 1.3.2, 1.4.2, 1.4.7, Server, 1.3.1, 1.2.5, 1.5.0, 1.2.3, 1.6.2, 1.2.2
Release 2023-03-07 Get
Agenta-1.6.1
MC 1.7.6, 1.7.4, 1.7.7, 1.7.5, 1.4.6, 1.6.1, 1.0, 1.7.9, 1.2.4, Client, 1.7.3, 1.7.2, 1.4.4, 1.0.0, Forge, 1.5.2, 1.5.1, 1.1, 1.2.1, 1.7.8, 1.6.4, 1.7.10, 1.4.5, 1.3.2, 1.4.2
Release 2023-03-05 Get
V1.6.0
MC 1.7.6, 1.7.4, 1.7.7, 1.7.5, 1.4.6, 1.6.1, 1.0, 1.7.9, 1.2.4, Client, 1.7.3, 1.7.2, 1.4.4, 1.0.0, Forge, 1.5.2, 1.5.1, 1.1, 1.2.1, 1.7.8, 1.6.4, 1.7.10, 1.4.5, 1.3.2, 1.4.2
Beta 2023-03-05 Get

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