title: I made a small auth server template for Deno Deploy description: I've fallen in love with Deno and its Deploy service, but also OpenAuth, so I made a simple template to deploy OpenAuth to Deno Deploy, using Deno KV for storage. date: 2025-05-26 authors:

• name: finxol tags:
• auth
• open source published: true

I'm currently messing around with Deno Deploy to build a tiny little service for myself, and I needed authentication—all apps need auth nowadays, url scanners are out of control.

I didn't really want to have the auth server coupled with the main service, so I just made it into a separate repository. The advantage here is that it's very minimal, so it runs for free no problem.

It's just a very basic wrapper around OpenAuth, using Deno KV for storage. It took me an afternoon to put together properly, but if you need a little auth server and not bother too much, this might be a good starting point.

With that, I can now use my own domain to authenticate users, and I only need my url and client id key.

So go crazy, follow the instructions in the README, and deploy it to Deno Deploy!