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    2,054,198 files checkedFiles from Modrinth and CurseForge we downloaded and checked. Counted on 25 Oct 2026.636,163 files with their code readFiles whose code we turned back into readable code and read, in an isolated environment. Counted on 25 Oct 2026.269,438 projects gradedProjects with a letter from A to F. Counted on 25 Oct 2026.
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    © 2026 ModgradeNot an official Minecraft product. Not approved by or associated with Mojang or Microsoft.

    Mystical Index

    Mod

    Store blocks, items, and other things in magical books.

    B80/ 100
    • OverviewB
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 26.1.2
    • ModpacksIn 29
    • ReleasesLatest 22 Aug

    Download

    mystical_index-fabric-26.1.2-2.0.jar

    Released 18 Aug 2026 · 372.7 KB

    Passed: our checks found nothing harmful in this file.

    Download

    Required to run

    • Architectury APIAMinecraft 26.1.2 · Fabric (release 20.1.17)
    • Fabric APINeeded by Architectury APIAMinecraft 26.1.2 · Fabric (release 0.155.3)
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade B

    How grades work

    Strengths

    • Security checks passed
    • Around for years

    Points lost

    • Releases in only 1 of the last 24 months−5 points
    • Many modpacks removed it−3 points
    • No public issue tracker−3 points
    • Under 5 million downloads−1 point
    All 11 criteria

    • Maintenance

      5 points lost22 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.2 months ago (22 Aug 2026) 12 / 12
      Supports popular versionsWhether the project has a file for a Minecraft version that 15% or more of the popular mods updated in the last 6 months also support. A version many modpacks use, like 1.20.1 or 1.21.1, also counts after a release in the last 12 months.26.1.2 on Fabric and NeoForge. 68% of the 718 popular Fabric mods updated in the last 6 months also have files for 26.1.2. Latest Minecraft: 26.3. 9 / 9
      Regular releasesIn how many of the last 24 months a new file came out. Full points at 8 months.Releases in 1 of the last 24 months 1 / 6

    • Stability

      3 points lost12 / 15
      Removed from modpacksHow many modpacks removed it in a later version of the pack. We can only see this in modpacks with two or more versions. A pack that swaps it for another edition of the same project, or that is rebuilt from scratch, does not count.5 of the 25 modpacks with two or more versions removed it in a later one (20%) See the 5 modpacks7 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.Not measured yet.
      Known conflictsHow many projects say they do not work with it, compared with how widely it is used. Packs, small projects, forks, ports, add-ons, alternatives and old versions do not count.None 5 / 5

    • Transparency

      3 points lost7 / 10
      Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · NickMesser/Mystical-Index 7 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.No link to report problems 0 / 3

    • Popularity

      1 point lost3 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.116,011 3 / 4

    • Track record

      Full points8 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.4.8 years, 23 releases 8 / 8

    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in all 6 latest files for recent Minecraft versions. See Security
    Total80 / 100

    51.5 of the 64 points that apply = 80 out of 100. The points above are rounded to whole numbers.

    About

    Mystical Index adds book-based storage and automation while keeping its features within a vanilla-style Minecraft experience. Its books cover compact, specialized tasks: the Book of Storage stores and places stacks of one block type, the Book of Fluid holds and places fluid, the Book of Saturation stores food and feeds the player, and the filtered Book of Magnetism collects matching dropped items. Books of Holding provide upgradeable storage for multiple item types, while Empty Villager and Villager Books capture villagers for later trading and Baby Villager Books grow into adult books while retaining the captured villager. Other books automate production: Farming Books bind to crops and harvest produce over time, while Husbandry and Hostility Books store passive or hostile mobs and generate their drops; killing the matching mob with the book in hand can shorten its cooldown. Entity Paper captures a mob type and can be combined with an egg to craft its spawn egg, or used to charge a Book of Hostility through piston crafting. Libraries hold up to five storage books, and the Mystical Lectern connects nearby Libraries into a searchable, sortable storage view with a crafting grid that draws and replenishes ingredients from the network. The Scriptorium runs effect books placed in its slots, automating crop growth, loot generation, item collection and storage, and experience collection, with hopper support for automation. A Book of Experience banks XP, a Book of Transport moves matching items to a bound Library, and the Book Sling carries five effect books so they can keep working from one inventory slot.

    Written from Modrinth and CurseForge . How we write it

    In-game changes

    Changes the game's code in 4 areas: Mobs and their behaviorChanges 3 game code files in this area: mobs, animals, villagers, projectiles and how they move and act., PlayerChanges 1 game code file in this area: your character: movement, abilities, hunger and controls., Blocks and fluidsChanges 1 game code file in this area: how blocks, fluids and redstone work. and Inventory and itemsChanges 1 game code file in this area: items, chests and other containers, crafting and enchanting..

    Adds 2 blocks, 15 items and 14 recipes.

    Counted from the names and data files in the mod, so the list may not be complete.

    Keeps all of vanilla Minecraft's textures, models and sounds.

    Often used with it

    See all 30
    Decorative BlocksCLithiumABewitchmentCOriginsAMod MenuA

    Details

    Creator
    nickmesser
    License
    All rights reserved
    Downloads
    116K
    Created
    16 Jan 2022
    Official pages
    Modrinth , CurseForge
    Links
    Source code , Discord

    Security

    No harmful code found

    We checked its files and read their code, without running it.

    What it can do on your computer

    Creates settings files
    The mod keeps its settings in the config folder of your game, where you can change or delete them.

    Why we show this: a mod runs on your computer like any program, so harmful code in it can take your accounts or files. Our checks look for known signs of harm. They cannot prove that a file is harmless. In the grade: malware means no grade, and a Warning in a latest file for a recent Minecraft version lowers it.

    How we checked · All 12 latest files checked, last on 16 Oct 2026
    • FilesWe download the files from Modrinth or CurseForge and look at what is inside them and what their code can do, without running them. Fixed rules tell what is harmful.
      12 latest files: the newest file for each Minecraft version and loader. The answer above is about the 6 for recent versions. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks. See each file in Releases
    • Their codeWe turn the code of the files back into readable code and follow what it does, without running it. This shows what it downloads, what it sends and where your login goes.
      Read without running it
    • Author on ModrinthThe disclosure form on Modrinth, where the author declares that the project reads or edits things on your system outside the game. Since 13 Aug 2026, Modrinth's rules require it when this applies.
      Nothing declared about your system outside the game.
    • Looked for, not foundWe looked for these in the file and did not find them.
      The internet, folders outside the game, other programs, updating itself, the webcam or microphone, an AI service.

    Privacy

    We found nothing it sends

    We read its code without running it: it contacts no web address while you play.

    Why we show this: a mod can send things about you over the internet, like your player name or your login. Contacting an address to check for updates or download files sends nothing about you. Not in the grade: sending data can be normal for what a mod does.

    How we checked · All 6 files read
    • Files readWe read the code without running it. We list each web address the code contacts while you play, and what it sends. Code that is never used is left out.
      The code of all 6 files, for recent Minecraft versions. See each file in Releases
    • Author on ModrinthThe disclosure form on Modrinth, where the author declares crash reports, usage data and advertisements. Since 13 Aug 2026, Modrinth's rules require it when a project collects data on its users or shows advertisements.
      Nothing declared about crash reports, usage data or advertisements.

    AI

    No sign so far that AI was used to make it

    We looked for AI tools in its texts, files and images and found none.

    We have not read its code history yet.

    No sign of AI in the game

    We found no AI service, AI library or AI model file in its code.

    Why we show this: some players and servers avoid projects made with AI, and AI in the game can send what you write to an online service. Not in the grade: using AI does not tell whether a project works well or is kept up to date.

    How we checked · 5 places read
    • Author on ModrinthThe disclosure form on Modrinth. Since 13 Aug 2026, Modrinth's rules require it when a substantial part of the code is AI output, when an asset is mainly AI output, or when the project or its page relies on generative AI.
      No AI content or AI features declared.
    • Code historyThe public code on GitHub: who made each change, credit lines such as "Co-authored-by", and its files.
      Not read yet
    • Description and changelogsThe description, project page and newest changelogs: sentences saying an AI tool was used, and text pasted from an AI chat.
      Nothing found
      12 of 40 changelogs read
    • Its filesFiles that AI coding tools leave behind (like AGENTS.md), and the texts inside the files you download.
      Nothing found
    • Images in its filesHidden data in the images of the files you download, where AI image tools write their name and settings.
      Nothing found
      21 images read
    • Code of the modThe code and files of the mod, read without running it: addresses of AI services, AI libraries, AI model files and a place for your own AI key.
      No AI service, AI library or AI model file
      144 code files read

    Compatibility

    See all 23 files
    Fabric
    NeoForge
    1.181.201.2126.1

    Point at or tap a version to see its loaders.

    Runs onWhere to install it: in your game, on the server, or both. As the author says on Modrinth.Needed in your game and on the server, or you cannot join.
    RequiresProjects you must also install for it to work. From the author's lists for its files for recent Minecraft versions, or from its project page.
    Architectury APIin some filesA
    OptionalProjects it can work with but does not need. The author lists them.Nothing
    IncludesProjects packed inside its files.Nothing
    Speed of updatesHow fast it gets a file for new Minecraft versions, on average, compared with similar projects. Not part of the grade.It has no file for Minecraft versions newer than 26.1.2. Many recently updated mods still support 26.1.2.

    Modpacks using this project

    Find modpacks with it

    Modpacks that include Mystical Index in at least one of their versions, most downloaded first.

    ModpackDownloadsLast version with it
    Euphoric Curiosity162K downloadslast version with it 16 May 2022Sky FABRICation 3136K downloadslast version with it 25 Jul 2023Magitech Fantasia38K downloadslast version with it 23 Jun 2022The 100 Days Multiverse: Dimensions21K downloadslast version with it 28 Jul 2022Strange Aeons: Sword and Sorcery7.8K downloadslast version with it 21 Aug 2022A Journey Beyond5.4K downloadslast version with it 25 Jul 2025Hero Craft | Fabric Edition3.7K downloadslast version with it 27 Oct 2022Official Figura SMP3.4K downloadslast version with it 3 Mar 2023distant lands survival3K downloadslast version with it 3 Mar 2022Fabrica Infinitum (Magica Infinitum for Fabric)2K downloadslast version with it 15 Jul 2022
    1 to 10 of 29123

    Often in the same modpacks

    Mods that modpacks often add together with Mystical Index. Share: how many of the modpacks with Mystical Index also have that mod.

    ProjectTypeShareGrade
    Decorative BlocksCModin 69% of the modpacks with Mystical IndexLithiumAModin 69% of the modpacks with Mystical IndexBewitchmentCModin 62% of the modpacks with Mystical IndexOriginsAModin 62% of the modpacks with Mystical IndexMod MenuAModin 62% of the modpacks with Mystical IndexFerriteCoreAModin 62% of the modpacks with Mystical IndexBetterEndBModin 59% of the modpacks with Mystical IndexAttributeFixAModin 59% of the modpacks with Mystical IndexsparkAModin 59% of the modpacks with Mystical IndexBetterNetherBModin 55% of the modpacks with Mystical Index
    1 to 10 of 30123

    Latest files

    The newest file for each Minecraft version and loader. The files for recent versions come first. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks.

    MinecraftLoaderVersionSecuritySendsRequires
    26.1.2·Fabric2.02.0 · mystical_index-fabric-26.1.2-2.0.jarSends: None foundRequires:Architectury APIPassedOur checks found nothing harmful in this file. Its code was read too.
    26.1.2·NeoForge2.02.0 · mystical_index-neoforge-26.1.2-2.0.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.1·Fabric1.11.1 · mystical_index-fabric-1.21.1-1.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.1·NeoForge1.11.1 · mystical_index-neoforge-1.21.1-1.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.1·Fabric1.41.4 · mystical_index-1.20.1-1.3.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20 to 1.20.1·Fabric1.31.3 · mystical_index-1.20.1-1.3.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    Older Minecraft versions
    1.19.4·Fabric0.5.10.5.1 · mystical_index-1.19.4-0.5.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.19.4·Fabric0.50.5 · mystical_index-1.19.4-0.5.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.19.2·Fabric0.2.00.2.0 · mystical_index-1.19.2-0.2.0.jarSends: None foundRequires:Architectury APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1.18.2·Fabric0.0.100.0.10 · mystical_index-1.18.2-0.0.10.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1 to 10 of 1212

    23 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.21.1The latest file for its Minecraft version and loader·NeoForge1.11.1 · mystical_index-neoforge-1.21.1-1.1.jar (main file)·22 Aug 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 230.2 KB
    1.21.1The latest file for its Minecraft version and loader·Fabric1.11.1 · mystical_index-fabric-1.21.1-1.1.jar (main file)·22 Aug 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 224.4 KB
    26.1.2The latest file for its Minecraft version and loader·Fabric2.02.0 · mystical_index-fabric-26.1.2-2.0.jar (main file)·18 Aug 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 372.7 KB
    26.1.2The latest file for its Minecraft version and loader·NeoForge2.02.0 · mystical_index-neoforge-26.1.2-2.0.jar (main file)·18 Aug 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 373.9 KB
    1.20.1The latest file for its Minecraft version and loader·Fabric1.41.4 · mystical_index-1.20.1-1.3.jar·16 Aug 2026PassedOur checks found nothing harmful in this file. Its code was read too.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 212.1 KB
    1.20 to 1.20.11.20 to 1.20.1The latest file for its Minecraft version and loader·Fabric1.31.3 · mystical_index-1.20.1-1.3.jar (first file)·8 Aug 2023PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 221.9 KB
    1.20 to 1.20.11.20 to 1.20.1·Fabric1.21.2 · mystical_index-1.20.1-1.2.jar (first file)·2 Aug 2023PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 242.1 KB
    1.20 to 1.20.11.20 to 1.20.1·Fabric1.11.1 · mystical_index-1.20.1-1.1.jar (first file)·13 Jun 2023PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 124.8 KB
    1.20.1·Fabric1.01.0 · mystical_index-1.20.1-1.0.jar·12 Jun 2023PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 122.4 KB
    1.20-Snapshot·Fabric1.20-rc1-0.61.20-rc1-0.6 · mystical_index-1.20-rc1-0.6.jar·31 May 2023PassedOur checks found nothing harmful in this file. Its code was read too.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 122.4 KB
    1.19.4The latest file for its Minecraft version and loader·Fabric0.5.10.5.1 · mystical_index-1.19.4-0.5.1.jar·20 May 2023PassedOur checks found nothing harmful in this file. Its code was read too.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 122.6 KB
    1.19.4The latest file for its Minecraft version and loader·Fabric0.50.5 · mystical_index-1.19.4-0.5.jar (first file)·20 May 2023PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthNot on CurseForgeDownload · Stable · 122.6 KB
    1.19.4·Fabric0.40.4 · mystical_index-1.19.4-0.4.jar·21 Apr 2023PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 108.0 KB
    1.19.2The latest file for its Minecraft version and loader·Fabric0.2.00.2.0 · mystical_index-1.19.2-0.2.0.jar (first file)·15 Oct 2022PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 76.5 KB
    1.18.2The latest file for its Minecraft version and loader·Fabric0.0.100.0.10 · mystical_index-1.18.2-0.0.10.jar·11 Apr 2022PassedOur checks found nothing harmful in this file. Its code was read too.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 89.7 KB
    1.18.1The latest file for its Minecraft version and loader·Fabric0.0.90.0.9 · mystical_index-1.18.1-0.0.9.jar·7 Feb 2022PassedOur checks found nothing harmful in this file. Its code was read too.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 89.7 KB
    1.18.1The latest file for its Minecraft version and loader·Fabric0.0.80.0.8 · mystical_index-1.18.1-0.0.8.jar (first file)·6 Feb 2022PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 89.7 KB
    1.18.1·Fabric0.0.70.0.7 · mystical_index-1.18.1-0.0.7.jar (first file)·30 Jan 2022PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 84.2 KB
    1.18.1·Fabric0.0.60.0.6 · mystical_index-1.18.1-0.0.6.jar·29 Jan 2022PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 78.9 KB
    1.18.1·Fabric0.0.50.0.5 · mystical_index-1.18.1-0.0.5.jar·25 Jan 2022PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 76.5 KB
    1 to 20 of 2312