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AEKey Legacy

by gardenevery

AEKey Legacy is a Forge library that backports the AEKey API to Minecraft 1.12.2 for other mods to build on.

ForgeClient and serverCustom license1.12.2

What it does

The library ports the AEKey API into a 1.12.2 environment. Its main job is to let other 1.12.2 mods build on that API, since it adds no blocks, items or recipes of its own. Developers pull it in as a dependency, and players do not interact with it directly.

The port follows several adaptations made during the backport. The isTagged method is changed to accept a TagKey String, overridden methods are modified to stay compatible, and tag matching works with the Ore Dictionary system. The original cachedDamage field of AEItemKey is renamed to metadata, and methods that retrieve metadata check whether a variant exists before adding it. Creation, comparison and serialization of AEItemKey now support metadata.

A server running it needs every connecting player to have it too. Files are published for Forge only, for the single game version 1.12.2, with 1.0.5 as the latest file, dated 2026-03-25. The author released it under a custom license, and it is not open source, though the source code is public.

Key features

  1. AEKey API backport

    Brings the AEKey API to Minecraft 1.12.2 as a shared library.

  2. Ore Dictionary tag matching

    The isTagged method accepts a TagKey String, so tag checks can work through the Ore Dictionary.

  3. Metadata-aware item keys

    AEItemKey stores metadata in place of the original cachedDamage field and supports it in creation, comparison and serialization.

  4. Variant checks

    Methods that read metadata first check whether a matching variant exists before adding one.

Compatibility

Latest build for each game version and loader.

1.12.21.0.5
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Use cases

Developing 1.12.2 add-ons

Mod authors who want AEKey-based storage or networking features on 1.12.2 can depend on the library instead of porting the API themselves.

Who it’s for: The library is aimed at mod developers working on 1.12.2 who need the AEKey API. Players who only want to play with a finished mod have no direct use for it.

Questions

Does AEKey Legacy add anything to the game by itself?

No. The library adds no blocks or items. It serves as a prerequisite for other mods that use the AEKey API on 1.12.2.

Does the server need AEKey Legacy?

Yes, if a dependent mod runs on the server. Installation covers the server and each player's game.

Which Minecraft version does AEKey Legacy support?

Only Minecraft 1.12.2. The latest Forge file, 1.0.5, is published for that version.

More from gardenevery

All projects
AE2UEL Extra1.12.2VIVintageTag1.12.2CLCobbleForDays Legacy1.12.2

What the author says

AEKey Legacy is a library mod for Minecraft 1.12.2 that backports the AEKey API from AE2 version 1.20.1. This mod does not add any game content itself and serves only as a prerequisite for the development and use of other mods.
gardenevery, on the Modrinth page

Official listing

Owner
gardenevery
Published
2026-03-17
Updated on Modrinth
2026-03-25
Facts verified
2026-10-15
Open on ModrinthCompare