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    2,046,932 files checkedFiles from Modrinth and CurseForge we downloaded and checked. Counted on 24 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 24 Oct 2026.269,480 projects gradedProjects with a letter from A to F. Counted on 24 Oct 2026.
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    © 2026 ModgradeNot an official Minecraft product. Not approved by or associated with Mojang or Microsoft.

    MesdagPortLib

    Mod

    A library that helps other mods work across game versions.

    B86/ 100
    • OverviewB
    • SecurityPassed
    • PrivacyNot read yet
    • AINone found
    • CompatibilityMinecraft 1.20.1
    • ModpacksIn 21
    • ReleasesLatest 24 Oct

    Download

    MesdagPortLib+neoforge1.21.1 to forge1.20.1-1.3.0.jar

    Released 24 Oct 2026 · 1.8 MB

    Passed: our checks found nothing harmful in this file.

    Download
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade B

    How grades work

    Strengths

    • Security checks passed
    • Regular releases for Minecraft 1.20.1, a version many recently updated mods still support
    • Stable releases
    • Public source code

    Points lost

    • First release only 3 months ago−6 points
    • Under 5 million downloads−2 points
    All 11 criteria

    • Maintenance

      Full points21 / 21
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.Today (24 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.1.20.1 on Forge. 15% or more of the popular mods updated in the last 6 months also have files for 1.20.1. 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.Does not apply. The project is under 6 months old.

    • Stability

      Full points15 / 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.2 of the 18 modpacks with two or more versions removed it in a later one (11%) 10 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.Does not apply. The project is under 6 months old.
      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 points7 / 7
      Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · westernat/MesdagPortLib 7 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.Does not apply. CurseForge links are not in our data.

    • Popularity

      2 points lost2 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.25,178 2 / 4

    • Track record

      6 points lost2 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.3 months, 14 releases 2 / 8

    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in the latest file for recent Minecraft versions. See Security
    Total86 / 100

    47.3 of the 55 points that apply = 86 out of 100. The points above are rounded to whole numbers.

    About

    MesdagPortLib is a library for mod developers that brings modern Minecraft API features to Forge 1.20.1, helping them build mods with NeoForge-style APIs. It adds 17 synchronized player and entity attributes, including block-breaking speed, mining efficiency, jump strength, fall-damage multiplier, scale, and creative flight; these attributes only affect gameplay when another mod changes them. Its JSON-driven data map system supports typed values for registry entries, tag-based and conditional application, merging and removal, and automatic network synchronization, with built-in maps for compostables and furnace fuels. A data component system provides persistent, type-safe ItemStack data with network synchronization and partial updates, while the attachment system adds serializable data to entities, block entities, and levels, including save persistence and per-player synchronization. The library ports more than 220 events across player, living-entity, client, world, block, item, brewing, enchanting, and village systems, and dispatches them on each calling mod's own event bus. It also provides bundled network packets and flexible send targets, adds methods to more than 45 vanilla classes through interface injection, and generates common cross-mod tags for categories such as ores, cobblestones, sands, chests, and storage blocks.

    Written from CurseForge . How we write it

    In-game changes

    Changes the game's code in 15 areas, as a library other mods build on: Mobs and their behaviorChanges 22 game code files in this area: mobs, animals, villagers, projectiles and how they move and act., Inventory and itemsChanges 13 game code files in this area: items, chests and other containers, crafting and enchanting., Blocks and fluidsChanges 12 game code files in this area: how blocks, fluids and redstone work., Game coreChanges 10 game code files in this area: the main loop, lighting and other code the whole game uses., Rendering and graphicsChanges 8 game code files in this area: drawing mobs, items, particles and textures on screen., Game data and resourcesChanges 7 game code files in this area: recipes, tags, advancements, language files and other game data., User interfaceChanges 5 game code files in this area: menus, screens, tooltips, the chat window and the in-game overlay., PlayerChanges 5 game code files in this area: your character: movement, abilities, hunger and controls., Networking and multiplayerChanges 5 game code files in this area: connections, the server list and what is sent between your game and a server., Chunk loading and storageChanges 4 game code files in this area: how the game loads, tracks, saves and unloads chunks., World renderingChanges 4 game code files in this area: drawing the terrain, sky, clouds and weather., Server and world logicChanges 4 game code files in this area: the world, commands, scoreboards, saved data and game rules., SoundChanges 2 game code files in this area: playing sounds, music and the sound engine., Game optionsChanges 1 game code file in this area: settings, key bindings and the option screens. and Other game codeChanges 1 game code file in this area: game code that is not in one of the areas above..

    Adds 13 blocks and 27 sounds.

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

    Replaces 1 of vanilla Minecraft's advancements.

    Often used with it

    See all 29
    RelicsAIron's Spells 'n SpellbooksAApotheosisAMmmMmmMmmMmmAMowzie's MobsB

    Details

    Creator
    westernat233
    License
    Not known
    Downloads
    25K
    Created
    7 Aug 2026
    Official page
    CurseForge
    Links
    Source code

    Security

    No harmful code found

    We checked its files without running them.

    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 · The latest file checked, last on 24 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.
      1 latest file, for a recent version. 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.
      Not read yet
    • 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 have not read its code yet

    The file checks found no code that connects to the internet.

    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 · Code not read yet
    • 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.
      None yet. See each file in Releases

    AI

    No sign so far that AI was used to make it

    We looked for AI tools in its texts, files, images and sounds 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.
      Not on Modrinth.
    • 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
      18 of 28 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
      10 images read
    • Sounds in its filesThe tags of the sound files in the files you download, where some AI music tools write their name.
      Nothing found
      40 of 41 sounds 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
      1,059 code files read

    Compatibility

    See all 14 files
    Forge
    1.201.2126.126.3

    Point at or tap a version to see its loaders.

    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.Nothing
    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.No file yet for the newest Minecraft version.

    Related projects

    Projects that need MesdagPortLib to work.

    ProjectTypeDownloadsGrade
    Terra CurioAMod4.6M downloads

    Modpacks using this project

    Find modpacks with it

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

    ModpackDownloadsLast version with it
    Rhinocraft62K downloadslast version with it 3 Oct 2026Clan grug new age5.7K downloadslast version with it 11 Oct 2026Magitech TravelCraft1.5K downloadslast version with it 9 Oct 2026origins all adventures851 downloadslast version with it 17 Aug 2026Epoch of the Banished Gods836 downloadslast version with it 10 Oct 2026A.D.D.O.N.S493 downloadslast version with it 12 Aug 2026Philosopher's Tools421 downloadslast version with it 27 Sep 2026Charms And Relics370 downloadslast version with it 28 Sep 2026Freelance Adventure218 downloadslast version with it 12 Oct 2026Yet Another Another Vanilla+181 downloadslast version with it 29 Sep 2026
    1 to 10 of 21123

    Often in the same modpacks

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

    ProjectTypeShareGrade
    RelicsAModin 81% of the modpacks with MesdagPortLibIron's Spells 'n SpellbooksAModin 81% of the modpacks with MesdagPortLibApotheosisAModin 81% of the modpacks with MesdagPortLibMmmMmmMmmMmmAModin 76% of the modpacks with MesdagPortLibMowzie's MobsBModin 76% of the modpacks with MesdagPortLibAttributeFixAModin 76% of the modpacks with MesdagPortLibAlex's CavesCModin 67% of the modpacks with MesdagPortLibL_Ender's CataclysmBModin 67% of the modpacks with MesdagPortLibIce and FireCModin 67% of the modpacks with MesdagPortLibAmendmentsAModin 67% of the modpacks with MesdagPortLib
    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
    1.20.1·Forge1.3.01.3.0 · MesdagPortLib+neoforge1.21.1 to forge1.20.1-1.3.0.jarSends: Not read yetRequires:NothingPassedOur checks found nothing harmful in this file.

    14 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.20.1The latest file for its Minecraft version and loader·Forge1.3.01.3.0 · MesdagPortLib+neoforge1.21.1 to forge1.20.1-1.3.0.jar·24 Oct 2026PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 1.8 MB
    1.20.1·Forge1.2.91.2.9 · MesdagPortLib+neoforge1.21.1 to forge1.20.1-1.2.9.jar·14 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 1.8 MB
    1.20.1·Forge1.2.81.2.8 · MesdagPortLib+neoforge1.21.1 to forge1.20.1-1.2.8.jar·12 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 1.8 MB
    1.20.1·Forge1.2.71.2.7 · MesdagPortLib+neoforge1.21.1 to forge1.20.1-1.2.7.jar·8 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 1.8 MB
    1.20.1·Forge1.2.61.2.6 · MesdagPortLib+neoforge1.21.1 to forge1.20.1-1.2.6.jar·25 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 1.8 MB
    1.20.1·Forge1.2.51.2.5 · MesdagPortLib+neoforge1.21.1 to forge1.20.1-1.2.5.jar·21 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 1.8 MB
    1.20.1·Forge1.2.41.2.4 · MesdagPortLib+neoforge1.21.1 to forge1.20.1-1.2.4.jar·17 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 1.8 MB
    1.20.1·Forge1.2.31.2.3 · MesdagPortLib+neoforge1.21.1 to forge1.20.1-1.2.3.jar·15 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 1.8 MB
    1.20.1·Forge1.2.21.2.2 · MesdagPortLib+neoforge1.21.1 to forge1.20.1-1.2.2.jar·12 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 1.8 MB
    1.20.1·Forge1.2.11.2.1 · MesdagPortLib+neoforge1.21.1 to forge1.20.1-1.2.1.jar·10 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 1.8 MB
    1.20.1·Forge1.2.01.2.0 · MesdagPortLib+neoforge1.21.1 to forge1.20.1-1.2.0.jar·10 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 1.8 MB
    1.20.1·Forge1.1.01.1.0 · MesdagPortLib+neoforge1.21.1 to forge1.20.1-1.1.0.jar·28 Aug 2026PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 1.7 MB
    1.20.1·Forge1.0.11.0.1 · MesdagPortLib+neoforge1.21.1 to forge1.20.1-1.0.1.jar·11 Aug 2026PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 1.7 MB
    1.20.1·Forge1.0.01.0.0 · MesdagPortLib+neoforge1.21.1 to forge1.20.1-1.0.0.jar·7 Aug 2026PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 1.7 MB