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Caelus API

Mod

by TheIllusiveC4

A coremod and API to provide developers access to elytra flight mechanics through an entity attribute.

Type

Mod

CurseForge Downloads

172,077,056

CurseForge ID

308989

Modrinth Downloads

8,732,838

Modrinth ID

40FYwb4z

Last Updated

Nov 7, 2026

Description

Caelus is a small utility mod that abstracts the hardcoded vanilla elytra behavior into a more generic elytra flight attribute and exposes this to mod developers seeking to implement elytra flight for their own mods.

All modders have to do is call CaelusApi.getInstance().getFallFlyingAttribute() wherever they want to apply a modifier to the flight attribute. The attribute has a default value of 0, which forbids any elytra flight. Attribute values greater than or equal to 1 will enable elytra flight. The vanilla elytra item has also been changed to use this attribute, keeping its behavior the same as normal.

For more information on how to interact with the attribute, see the Minecraft wiki.

Adding to Your Project:

Add the following to your build.gradle file:

repositories {
    maven {
        name = 'C4's Maven'
        url = "https://maven.theillusivec4.top/"
    }
}

Forge

dependencies {
    runtimeOnly "com.illusivesoulworks.caelus:caelus-forge:${version}"
    compileOnly "com.illusivesoulworks.caelus:caelus-forge:${version}:api"
}

NeoForge

dependencies {
    runtimeOnly "com.illusivesoulworks.caelus:caelus-neoforge:${version}"
    compileOnly "com.illusivesoulworks.caelus:caelus-neoforge:${version}:api"
}

Replace ${version} with the version of Caelus that you want to use.

Support

Please report all bugs, issues, and feature requests to the issue tracker.

For non-technical support and questions, join the developer's Discord.

License

All source code and assets are licensed under LGPL-3.0-or-later.

Donations

Donations to the developer can be sent through Ko-fi.

Affiliates

BisectHosting

Compatibility

Mod Loaders

Fabric Forge Neoforge

Game Versions

1.13.2 1.14.4 1.15.2 1.16.4 1.16.5 1.17.1 1.18 1.18.1 1.18.2 1.19 +13 more

Recommended Gear

Affiliate

Hardware and extras that pair well with this mod.

Mini PC for self-hosting

Mini PC for Self-Hosting

A low-power box that can sit in a cupboard and run a modded server around the clock.

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External Resources

CurseForge Modrinth Source Code Issues