Roughly Enough Items (REI) 26.2.820: Download, Install, Search, and Fixes

MineBrush reviewed the official release records and attachment structure. This exact build was not independently launched in a Minecraft runtime; use a backup and match the listed game version, loader, and dependencies.

What REI gives you

Roughly Enough Items—usually shortened to REI—is a configurable item and recipe viewer by shedaniel and contributors. It adds an item list beside inventory-style screens and lets players inspect recipes, uses, tags, tooltips, and mod ownership without leaving the game. The current 26.2.820 files covered here target Minecraft Java 26.2.

REI is a viewer and integration platform, not a magic recipe generator. If an installed mod does not expose a recipe or lacks the necessary integration, REI cannot invent reliable instructions for it. Likewise, seeing an item in the list does not mean the item is obtainable in the current world, pack, or server.

Choose the correct loader file

• Fabric release: version ID 4o0NSIMj, filename RoughlyEnoughItems-26.2.820.jar, 2,419,949 bytes. Requires Fabric API, Architectury API, and Cloth Config API.
• NeoForge beta: version ID BoY0Dky0, filename RoughlyEnoughItems-26.2.820.jar, 2,431,095 bytes. Requires Architectury API and Cloth Config API.

The visible filenames are identical even though the binaries are different. Use the loader label, official version ID, and byte count—not the filename alone. The Fabric build is a release. The NeoForge build is officially marked Beta; MineBrush must preserve that label and must not present it as stable.

Exact dependency set for Minecraft 26.2

For the checked 26.2 line, the current exact dependency candidates are:

• Fabric API: fabric-api-0.158.0+26.2.jar, version ID NqwNSxwA, 2,535,765 bytes—Fabric only.
• Architectury API 21.0.7: architectury-fabric-21.0.7.jar, ID 1yQC4VvP, 587,038 bytes; or architectury-neoforge-21.0.7.jar, ID 9D1cNuR2, 581,749 bytes.
• Cloth Config 26.2.155: Fabric ID Nv3xnWXd, 1,135,186 bytes; NeoForge ID zErG1kOw, 1,135,847 bytes. Both expose the filename cloth-config-26.2.155.jar.

Never install both loader variants of a dependency in the same profile. Architectury and Cloth Config use loader-specific binaries, while the NeoForge REI route does not declare Fabric API.

Install REI on Fabric

1. Create or back up a Minecraft 26.2 Fabric instance.
2. Install the compatible Fabric Loader for that instance.
3. Add the Fabric builds of Fabric API, Architectury API, and Cloth Config.
4. Add the 2,419,949-byte Fabric REI file.
5. Launch a clean profile and open an inventory to verify the item panel appears.

Install REI on NeoForge

1. Create or back up a Minecraft 26.2 NeoForge instance.
2. Add the NeoForge builds of Architectury API and Cloth Config.
3. Add the 2,431,095-byte NeoForge REI file.
4. Do not add Fabric API or any Fabric version of the three files.
5. Launch a clean profile first. Remember that this exact REI build is beta-channel software.

Recipes, uses, favorites, and quick access

Click an item in the REI list or use the configured recipe/usage controls to inspect how it is crafted and where it is used. The exact mouse behavior can change with screen context and configuration, so rely on REI's displayed controls rather than memorizing a binding from another version. Press A over an item to favorite it under the official default scheme.

Favorites are useful for a short build or progression checklist. They do not reserve inventory space or prove that the item is obtainable. Pinning a recipe or using quick-craft functions still follows the recipe, inventory, permissions, and server rules supplied by the active game and mods.

Advanced search that saves time

REI's official search syntax supports several high-value filters:

• @modname filters by mod.
• #text searches tooltip text.
• $tag searches item tags.
• r/regex/ performs a regular-expression search.
• "exact phrase" keeps words together.
• | joins alternatives as OR.

Start with an item name, then add one filter. A blank panel can simply mean that the current query is too restrictive. Clear the search box before treating it as a load failure.

Hide entries and export recipes

REI includes a hiding mode for cleaning up duplicate or unwanted list entries. Use it carefully in a copy of the configuration: hiding an entry affects visibility, not the underlying recipe or server content. Recipe export also exists, but its keybind is unbound by default. Open REI's keybind/configuration screen and assign a non-conflicting key before expecting it to work.

Client and server expectations

The official project treats REI as useful on both client and server, with optional environment metadata rather than a universal hard requirement. For a personal client, start by installing it client-side with dependencies. A curated server or modpack may install server support to improve integrations. Players must not assume that joining a vanilla server gives them server-only recipes or permissions.

JEI-plugin compatibility is described by the creator for Forge/NeoForge lineage, but it is not a guarantee that every JEI plug-in works on this exact beta build. Treat third-party integrations as separate compatibility claims and test them with exact versions.

Known 26.2 reports to check

At the 2026-08-27 source check, the creator issue tracker had open reports involving the 26.2.820 NeoForge configuration/menu path and a Fabric interaction with Polymer 0.17.3+26.2. Open reports do not prove that every player is affected. They do mean MineBrush should reproduce the exact combinations before claiming compatibility, and NeoForge users should test in a disposable profile before moving a production pack.

Fix REI not showing items or recipes

• Game fails before the menu: verify Minecraft 26.2, the loader-specific REI binary, and every dependency. Read the earliest relevant missing-mod or wrong-loader message.
• Panel is empty: clear the search, exit hiding mode, verify the item list is enabled, and test without a conflicting inventory overlay.
• A recipe is absent: confirm the recipe really exists in the active pack/version and that the originating mod provides REI or compatible integration.
• Two files have the same name: identify them by official version ID and byte count. Never guess.
• Config screen crashes on NeoForge: preserve the log, reproduce with only REI and exact dependencies, and compare the open creator issue before changing unrelated mods.
• Keybind does nothing: check for conflicts and remember that recipe export is unbound by default.

Update or remove REI safely

Back up the instance configuration, replace REI only with a file for the same Minecraft version and loader, and keep dependencies aligned. If the next build changes channel or dependency versions, review it as a new compatibility set. To roll back, restore the previous REI JAR and its known-good config/dependency combination. REI should not own world blocks, but backups are still the right practice for a modpack change.

Download and license boundary

REI is MIT-licensed. Any MineBrush-hosted copy must be the untouched official artifact and include the copyright and permission notice. The dependency files keep their own licenses and must remain separate. The Fabric and NeoForge files must have separate download pages despite their identical filenames. MineBrush local downloads remain on hold until binary provenance, archive/security checks, dependency resolution, and clean-profile runtime QA pass.

Quick answer

For Minecraft 26.2 Fabric, install REI 26.2.820 with Fabric API, Fabric Architectury, and Fabric Cloth Config. For NeoForge, use the beta REI binary with NeoForge Architectury and NeoForge Cloth Config. Keep same-named files separate, use official search prefixes to narrow results, and clear filters before diagnosing an empty item list.

Official and creator sources

• REI: 26.2.820+fabric · Fabric · Release
• REI: 26.2.820+neoforge · NeoForge · Beta
• REI source: 26.2.820 source boundary
• Fabric API: 0.158.0+26.2 · Fabric · Release
• Architectury API: 21.0.7+fabric · Fabric · Release
• Architectury API: 21.0.7+neoforge · NeoForge · Release
• Cloth Config: 26.2.155+fabric · Fabric · Release
• Cloth Config: 26.2.155+neoforge · NeoForge · Release

These links identify the official or creator-controlled evidence checked on August 28, 2026. MineBrush has not treated an unverified runtime result, device outcome, or third-party configuration as guaranteed.