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    2,055,424 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 2026.269,392 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.

    Ace's Spell Utils

    Mod

    Tools for creators making add-ons for a magic mod.

    A97/ 100
    • OverviewA
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 1.21.1
    • ModpacksIn 994
    • ReleasesLatest 23 Oct

    Download

    aces_spell_utils-1.2.7.5-1.21.1.jar

    Released 23 Oct 2026 · 392.1 KB

    Passed: our checks found nothing harmful in this file.

    Download
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade A

    How grades work

    Strengths

    • Security checks passed
    • Regular releases for Minecraft 1.21.1, a version many recently updated mods still support
    • Public source code and issue tracker
    • Widely used
    • Around for years

    Points lost

    • Releases replaced within 3 days to fix a problem−2 points
    All 11 criteria

    • Maintenance

      Full points27 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.Yesterday (23 Oct 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.1.21.1 on NeoForge, 1.20.1 on Forge. 65% of the 995 popular NeoForge mods updated in the last 6 months also have files for 1.21.1. 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 13 of the last 24 months 6 / 6

    • Stability

      2 points lost20 / 22
      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.19 of the 377 modpacks with two or more versions removed it in a later one (5%) 10 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.8 of its 41 releases in 2 years needed a quick fix (20%) See the 8 releases5 / 7
      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

      Full points10 / 10
      Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · AceTheEldritchKing/Aces_Spell_Utils 7 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.GitHub issues · AceTheEldritchKing/Aces_Spell_Utils 3 / 3

    • Popularity

      Full points4 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.2,045,491 4 / 4

    • Track record

      Full points8 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.16 months, 41 releases 8 / 8

    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in both latest files for recent Minecraft versions. See Security
    Total97 / 100

    68.6 of the 71 points that apply = 97 out of 100. The points above are rounded to whole numbers.

    About

    Ace's Spell Utils is a developer API for creating add-ons to Iron's Spells 'n Spellbooks, providing reusable classes, methods, and visual effects rather than a standalone set of player-facing content. Its entity tools support custom-model spellcasting mobs with long, instant, and continuous casting animations, melee spellcasters, and bosses, including boss phases and configurable default, transition, or alternate music. Spellcasting mobs can use a combo goal to cast a chosen sequence of spells, while the API also supplies custom spell schools themed around occult magic, water, and technology. Item-building classes cover imbueable or preset-imbue curios and staffs, sheaths with custom player-model rendering, maces, active or passive ability swords, magic guns, loot bags, and passive-ability spellbooks. Developers can also draw on attributes such as Mana Steal, Mana Rend, Hunger Steal, Evasive, Goliath Slayer, and spell-resistance penetration, as well as custom item rarities. The visual-effects tools include camera shake, expanding colored domes that also trigger a brief shake, screen-distorting roars, impact-frame screen flashes, chromatic aberration, and trails and ribbons that follow moving entities. These effects offer configurable behavior such as color, duration, easing, and falloff, and trails can place particles along an entity's actual path so fast-moving projectiles remain visually continuous. The API further includes an abstract summon-spell class, shader and emissive Geckolib armor rendering support, and example items that let developers preview visual effects in game.

    Written from Modrinth and CurseForge . How we write it

    In-game changes

    Changes the game's code in 2 areas, as a library other mods build on: PlayerChanges 1 game code file in this area: your character: movement, abilities, hunger and controls. and Mobs and their behaviorChanges 1 game code file in this area: mobs, animals, villagers, projectiles and how they move and act..

    Adds 27 items and 1 mob.

    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 29
    Iron's Spells 'n SpellbooksAL_Ender's CataclysmBSophisticated StorageARelicsAApothic-EnchantingA

    Details

    Creator
    AceTheEldritchKing
    License
    MIT License
    Downloads
    2M
    Created
    3 Jul 2025
    Official pages
    Modrinth , CurseForge
    Links
    Source code , Issues , Wiki

    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 · Both latest files checked, last on 23 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.
      2 latest files: the newest file for each Minecraft version and loader. Both are 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 · Both 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 both 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 that AI was used to make it

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

    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 · 6 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.
      Nothing found
    • 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
      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
      28 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
      164 code files read

    Compatibility

    See all 41 files
    NeoForge
    Forge
    1.201.2126.126.3

    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.
    Iron's Spells 'n Spellbookson ForgeA
    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 1.21.1. Many recently updated mods still support 1.21.1.

    Related projects

    Projects that need Ace's Spell Utils to work.

    ProjectTypeDownloadsGrade
    Cataclysm: SpellbooksBMod4.3M downloadsHazen 'n StuffBMod3.6M downloadsDiscerning The EldritchAMod246K downloadsEnder's Spells and Stuff: RequiemAMod142K downloadsIron's Spells 'n Spellbooks:Monsters & SpellbooksAMod99K downloadsFire's Ender ExpansionAMod61K downloadsAsterism Arcanum | Addon for Iron's Spells and SpellbooksBMod47K downloadsMagic of ColorCMod31K downloadsCodex Of Champions [HIATUS]DMod30K downloadsSpellbooks Of Twilight : Iron's Spells x The Twilight Forest AddonBMod11K downloads
    1 to 10 of 1512

    Modpacks using this project

    Find modpacks with it
    Modpacks that released a new version with this project, each month
    3001500
    Oct 2024: 0 modpacksNov 2024: 0 modpacksDec 2024: 0 modpacksJan 2025: 0 modpacksFeb 2025: 0 modpacksMar 2025: 0 modpacksApr 2025: 0 modpacksMay 2025: 0 modpacksJun 2025: 0 modpacksJul 2025: 2 modpacksAug 2025: 20 modpacksSep 2025: 40 modpacksOct 2025: 52 modpacksNov 2025: 72 modpacksDec 2025: 70 modpacksJan 2026: 76 modpacksFeb 2026: 79 modpacksMar 2026: 107 modpacksApr 2026: 127 modpacksMay 2026: 197 modpacksJun 2026: 191 modpacksJul 2026: 205 modpacksAug 2026: 179 modpacksSep 2026: 166 modpacks
    Oct 2024Oct 2025Sep 2026
    Modpacks that released a new version with this project, each month
    Oct 20240
    Nov 20240
    Dec 20240
    Jan 20250
    Feb 20250
    Mar 20250
    Apr 20250
    May 20250
    Jun 20250
    Jul 20252
    Aug 202520
    Sep 202540
    Oct 202552
    Nov 202572
    Dec 202570
    Jan 202676
    Feb 202679
    Mar 2026107
    Apr 2026127
    May 2026197
    Jun 2026191
    Jul 2026205
    Aug 2026179
    Sep 2026166

    More modpacks put it in their new versions than a year ago: 178 a month now, 10 a year agoThe average of the last 6 months, compared with the same 6 months a year before. We say it only when the change is large..

    994 modpacks include Ace's Spell Utils in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    Craftoria2.9M downloadslast version with it 13 Sep 2026Create Chronicles: The Endventure891K downloadslast version with it 19 May 2026TNP Limitless 8 - LL8333K downloadslast version with it 16 Oct 2026Medieval MC [NEOFORGE] MMC5310K downloadslast version with it 4 May 2026BETTER FANTASY - Overture203K downloadslast version with it 11 Oct 2026All the Magic - Arcana201K downloadslast version with it 23 Aug 2026Vagrant Saga - RPG Survival Adventure158K downloadslast version with it 19 Oct 2026Modded Together138K downloadslast version with it 24 Sep 2026From Magic To Tech136K downloadslast version with it 14 Oct 2026Tensura Evolutions129K downloadslast version with it 7 Sep 2026
    1 to 10 of 30123

    Often in the same modpacks

    Mods that modpacks often add together with Ace's Spell Utils. Share: how many of the modpacks with Ace's Spell Utils also have that mod.

    ProjectTypeShareGrade
    Iron's Spells 'n SpellbooksAModin 100% of the modpacks with Ace's Spell UtilsL_Ender's CataclysmBModin 90% of the modpacks with Ace's Spell UtilsSophisticated StorageAModin 69% of the modpacks with Ace's Spell UtilsRelicsAModin 66% of the modpacks with Ace's Spell UtilsApothic-EnchantingAModin 62% of the modpacks with Ace's Spell UtilsApothic-SpawnersAModin 61% of the modpacks with Ace's Spell UtilsApotheosisAModin 60% of the modpacks with Ace's Spell UtilsMowzie's MobsBModin 60% of the modpacks with Ace's Spell UtilsAllTheLeaks (Memory Leak Fix)AModin 56% of the modpacks with Ace's Spell UtilsYUNG's Better Nether Fortresses (NeoForge) [1.20.4 - 1.21.1 ONLY]CModin 54% of the modpacks with Ace's Spell Utils
    1 to 10 of 29123

    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
    1.21.1·NeoForge1.2.7.51.2.7.5 · aces_spell_utils-1.2.7.5-1.21.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.1·Forge1.1.01.1.0 · aces_spell_utils-1.1.0-1.20.1.jarSends: None foundRequires:Iron's Spells 'n SpellbooksIron's Spells 'n SpellbooksPassedOur checks found nothing harmful in this file. Its code was read too.

    41 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.21.1The latest file for its Minecraft version and loader·NeoForge1.2.7.51.2.7.5 · aces_spell_utils-1.2.7.5-1.21.1.jar (main file)·23 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 392.1 KB
    1.20.1The latest file for its Minecraft version and loader·Forge1.1.01.1.0 · aces_spell_utils-1.1.0-1.20.1.jar (main file)·23 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 161.6 KB
    1.20.1·Forge1.0.01.0.0 · aces_spell_utils-1.0.0-1.20.1.jar (main file)·22 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 156.8 KB
    1.21.1·NeoForge1.2.7.41.2.7.4 · aces_spell_utils-1.2.7.4-1.21.1.jar (main file)·11 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 388.9 KB
    1.21.1·NeoForge1.2.7.31.2.7.3 · aces_spell_utils-1.2.7.3-1.21.1.jar (main file)·5 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 388.8 KB
    1.21.1·NeoForge1.2.7.21.2.7.2 · aces_spell_utils-1.2.7.2-1.21.1.jar (main file)·2 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 372.2 KB
    1.21.1·NeoForge1.2.7.11.2.7.1 · aces_spell_utils-1.2.7.1-1.21.1.jar (main file)·19 Jul 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 238.8 KB
    1.21.1·NeoForge1.2.7.01.2.7.0 · aces_spell_utils-1.2.7.0-1.21.1.jar (main file)·6 Jul 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 238.1 KB
    1.21.1·NeoForge1.2.6.11.2.6.1 · aces_spell_utils-1.2.6.1-1.21.1.jar (main file)·12 May 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 237.5 KB
    1.21.1·NeoForge1.2.61.2.6 · aces_spell_utils-1.2.6-1.21.1.jar (main file)·8 May 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 231.8 KB
    1.21.1·NeoForge1.2.51.2.5 · aces_spell_utils-1.2.5-1.21.1.jar (main file)·21 Mar 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 231.5 KB
    1.21.1·NeoForge1.2.41.2.4 · aces_spell_utils-1.2.4-1.21.1.jar (main file)·19 Mar 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 231.4 KB
    1.21.1·NeoForge1.2.31.2.3 · aces_spell_utils-1.2.3-1.21.1.jar (main file)·6 Feb 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 212.1 KB
    1.21.1·NeoForge1.2.21.2.2 · aces_spell_utils-1.2.2-1.21.1.jar (main file)·29 Jan 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 211.7 KB
    1.21.1·NeoForge1.2.11.2.1 · aces_spell_utils-1.2.1-1.21.1.jar (main file)·15 Jan 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 208.6 KB
    1.21.1·NeoForge1.2.01.2.0 · aces_spell_utils-1.2.0-1.21.1.jar (main file)·15 Jan 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 234.5 KB
    1.21.1·NeoForge1.1.231.1.23 · aces_spell_utils-1.1.23-1.21.1.jar (main file)·9 Jan 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 164.4 KB
    1.21.1·NeoForge1.1.221.1.22 · aces_spell_utils-1.1.22-1.21.1.jar (main file)·26 Dec 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 164.4 KB
    1.21.1·NeoForge1.1.211.1.21 · aces_spell_utils-1.1.21-1.21.1.jar (main file)·25 Dec 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 164.4 KB
    1.21.1·NeoForge1.1.201.1.20 · aces_spell_utils-1.1.20-1.21.1.jar (main file)·19 Dec 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 164.1 KB
    1 to 20 of 41123

    Quick fixes

    In the last 2 years, 8 releases needed a quick fix: a new release within 3 days to fix a problem. This lowers the grade by 2 points.

    See them, newest first

    Quick fixesReleases followed within 3 days by a new release that fixes a problem in them.8

    • aces_spell_utils-1.2.5-1.21.1.jar21 Mar 2026…UniqueAbstractMeleeCastingMob class Fixed slash and stomp class animations not properly playing…
    • aces_spell_utils-1.2.1-1.21.1.jar15 Jan 2026Changelog: Fixed overhead swing slash not playing Added spin…
    • aces_spell_utils-1.1.22-1.21.1.jar26 Dec 2025Changelog: Fixed crash regarding clashing domains (FireOfPower)…
    • aces_spell_utils-1.1.15-1.21.1.jar14 Oct 2025Changelog: - Fixed Example Spellbook crashing servers (Thanks PotatoSofi!)…
    • aces_spell_utils-1.1.16-1.21.1.jar14 Oct 2025Changelog: Fixed crash on startup
    • aces_spell_utils-1.1.9-1.21.1.jar4 Sep 2025Changelog: - Fixed crash on startup
    • aces_spell_utils-1.1.6-1.21.1.jar20 Aug 2025Changelog: - Fixed dynamic music manager not being dynamic nor music manager…
    • aces_spell_utils-1.1.2-1.21.1.jar15 Jul 2025Changelog: - Fixed mana steal not working properly