Cardea is an open-source PaperMC plugin written in Kotlin that provides an alternative to whitelisting a server. This is done by implementing a login dialog using the new DialogAPI introduced in Paper 1.21.7.
Features:
- Easy to setup - Simply drop it in your plugins folder and set your password.
- Configurable - Configure the login dialog to your liking.
- Modern - This plugin is written using new features available in Paper API.
- Whitelist Alternative - Users are only required to login once.
Special Thanks To:
This project owes a huge thanks to GitBook's fantastic Open Source License and their amazing platform for creating beautiful and accessible documentation. Their dedication to open source and ease-of-use has been invaluable to this project's success!
Lithium Hosting's invaluable support by providing a server to facilitate development. Their dedication to open source and the developer community has been instrumental in making this project possible.
License
Cardea is licensed under the permissive MIT LICENSE. Please see LICENSE.txt for more info.
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.7, 1.21.8, 1.21.9
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as Cardea-1.0.2.jar — drop this file into the mods folder
- Download size: 6.6 MB
- Download link checked 9 Sept 2026 — working
These come from our own check of the pack file, not from the source page.