KeyAuth is an open source authentication system with cloud-hosted subscriptions available aswell https://keyauth.cc
You're not allowed to sell KeyAuth. source made avaliable only for you to use

To submit a suggestion or a bug, please go to https://keyauth.cc/app/?page=forms and submit a form!

If the default example that isn't added to your software isn't functioning how it should, please go to https://keyauth.cc/app/?page=forms and submit a bug report in the Report a Bug modal.

However, we do NOT provide support for adding KeyAuth to your project. If you can't figure this out you should use Google or YouTube to learn more about the programming language you want to sell a program in.

KeyAuth is licensed under Elastic License 2.0

• You may not provide the software to third parties as a hosted or managed service, where the service provides users with access to any substantial set of the features or functionality of the software.

• You may not move, change, disable, or circumvent the license key functionality in the software, and you may not remove or obscure any functionality in the software that is protected by the license key.

• You may not alter, remove, or obscure any licensing, copyright, or other notices of the licensor in the software. Any use of the licensor’s trademarks is subject to applicable law.

Thank you for your compliance, we work hard on the development of KeyAuth and do not appreciate our copyright being infringed.

• Web server (Apache or Nginx)
• MySQL or MariaDB
• Redis
• PHP

No setup support given to non-enterprise users. However for $79.99 you can purchase access to the source code of paid features (developer and seller plan features), setup support one-on-one with the Founder of KeyAuth, and a tutorial video on how to host KeyAuth for 100% free forever (good preformance & secure also)

Purchase enterprise today --> https://keyauth.mysellix.io/product/6361c20e415e9

Some pages such as the API endpoint that upgrades users after they purchase a subscription have been omitted to prevent violation of the license (No Commercial Access Allowed)

https://keyauth.canny.io/changelog

Looking for a Discord bot made by the KeyAuth & RestoreCord founder that you can use to backup your Discord members, server settings, and messages? Go to https://vaultcord.com