This page is static files on GitHub Pages. There is no proxy and no backend of mine behind the chat: each message goes from your browser to OneTag AI, with a key that is public by design. The key for your own site is free: enter your email at onetagai.com and it is sent to you.
This page uses the released Deep Chat 2.5.1 and one small file, onetag.js. The second page runs a build of Deep Chat where OneTag AI is a built-in directConnection service.