Install Caelus API in GDLauncher
Caelus API runs on Fabric, Forge, NeoForge. Pick whichever your existing instance uses, or create a new one. GDLauncher installs the correct loader automatically.
Install on Fabric
- Open GDLauncher and create a new instance (the + button on the Library page).
- Pick the Fabric loader and a Minecraft version that Caelus API supports (1.21.5, 1.20.6, 1.19.4 are common choices).
- Open the new instance, go to the Addons tab, and click Add Addons.
- Paste the Quick Install ID
#caelus, find Caelus API in the results, and hit Download. GDLauncher pulls dependencies automatically. - Hit Play. That's it.
Install on Forge
- Open GDLauncher and create a new instance (the + button on the Library page).
- Pick the Forge loader and a Minecraft version that Caelus API supports (1.21.5, 1.20.6, 1.19.4 are common choices).
- Open the new instance, go to the Addons tab, and click Add Addons.
- Paste the Quick Install ID
#caelus, find Caelus API in the results, and hit Download. GDLauncher pulls dependencies automatically. - Hit Play. That's it.
Install on NeoForge
- Open GDLauncher and create a new instance (the + button on the Library page).
- Pick the NeoForge loader and a Minecraft version that Caelus API supports (1.21.5, 1.20.6, 1.19.4 are common choices).
- Open the new instance, go to the Addons tab, and click Add Addons.
- Paste the Quick Install ID
#caelus, find Caelus API in the results, and hit Download. GDLauncher pulls dependencies automatically. - Hit Play. That's it.
Before you install
Make sure your Minecraft version matches what Caelus API supports. As of the latest release, 1.21.5, 1.20.6, 1.19.4 are supported. Caelus API supports multiple loaders (Fabric, Forge, NeoForge); pick whichever matches your other mods. GDLauncher checks compatibility for you and won't install something incompatible with the instance you've chosen.
Frequently Asked Questions
Is Caelus API free?
Yes. Caelus API is free to download and install through GDLauncher. GDLauncher itself is also free and ad-free.
What Minecraft versions does Caelus API support?
Caelus API supports Minecraft 1.21.5, 1.20.6, 1.19.4, 1.18.2, 1.17.1, 1.16.5. GDLauncher will automatically pick a compatible version when you install it.
Does Caelus API require Forge or Fabric?
Caelus API supports Fabric, Forge, NeoForge. Pick the loader that matches your other mods, or let GDLauncher set up a fresh instance for you.
How do I install Caelus API?
Open GDLauncher, go to your instance's Addons tab, click Add Addons, and paste the Quick Install ID #caelus. GDLauncher handles dependencies and the right Minecraft version automatically.
Who made Caelus API?
Caelus API is made by TheIllusiveC4. The full project lives on Modrinth (https://modrinth.com/mod/caelus).
Need help?
Read our troubleshooting guide, check the guides section, or join the GDLauncher Discord community.