MineUniverse lists 1,199 API and Library mods for Minecraft 1.21.1, ranked by total downloads. Together they have more than 14.4 billion downloads.
A flexible and expandable accessory/equipment API for users and developers.
Forge and Fabric lightweight library with utilities such as custom Villagers AI, data driven trades, global datapack, custom Map Markers, First and t…
CraftTweaker allows modpacks and servers to customize the game. With CraftTweaker you can change recipes, script events, add new commands and even ch…
Adds a Kotlin language loader and provides some optional utilities.
SuperMartijn642's Core Lib adds lots of basic implementations that allow for similar code between different Minecraft versions!
Config Lib makes dealing with config files just a bit easier.
A library mod for YUNG's Minecraft mods
More Axolotl Variants API
Axolotl Variants Extender API! updated Oct 15, 2026
Cobblemon Counter
A utility mod that keeps track of Cobblemon wild KO/capture counts/streaks. updated Oct 15, 2026
Collective
🎓 Collective is a shared library with common code for all of Serilum's mods. updated Oct 14, 2026
SuperMartijn642's Core Lib
SuperMartijn642's Core Lib adds lots of basic implementations that allow for similar code between different Minecraft versions! updated Oct 14, 2026
AzureLib
Java Minecraft mod using Bedrock models to create custom models and animations for items, blocks, entities updated Oct 14, 2026
MidnightLib
Common library with a built-in configuration system updated Oct 14, 2026
The most downloaded API and Library mods for 1.21.1 are GeckoLib, Cloth Config API (Fabric/Forge/NeoForge) and Architectury API, followed by Placebo and Curios API. In the last 30 days, 255 of them (21%) received a new file for 1.21.1. Recent updates include More Axolotl Variants API, Cobblemon Counter and Collective.
API and Library mods make up 4% of all 31,368 mods for 1.21.1. By loader, NeoForge leads with 1,002 mods for 1.21.1, followed by Fabric (611), Forge (194) and Quilt (143). Some mods support more than one loader, so these numbers add up to 1,950, more than the 1,199 in total.
Minecraft 1.21.1 was released on August 8, 2024. Compared with nearby versions, 1.21.1 has 198 fewer API and Library mods than 1.20.1 (1,397) and 814 more than 1.21.4 (385).
Ranked by downloads on MineUniverse, the top five API and Library mods for Minecraft 1.21.1 are GeckoLib, Cloth Config API (Fabric/Forge/NeoForge), Architectury API, Placebo and Curios API.
MineUniverse lists 1,199 API and Library mods for Minecraft 1.21.1. In the last 30 days, 255 of them (21%) received a new file for 1.21.1. Together they have more than 14.4 billion downloads.
1. Install the mod loader the mod is made for (Forge, Fabric, NeoForge or Quilt) for your Minecraft version. 2. Download the mod file (.jar) that matches your Minecraft and loader version. 3. Put the .jar into the mods folder of your Minecraft directory (.minecraft/mods). 4. Start Minecraft with the loader profile selected in the launcher.
NeoForge leads with 1,002 mods, followed by Fabric (611), Forge (194) and Quilt (143). Some mods support more than one loader, so these numbers add up to 1,950, more than the 1,199 in total.
Yes. All 1,199 API and Library mods for Minecraft 1.21.1 on MineUniverse are free to download.
