Pi for Excel: AI sidebar add-in for Excel, powered by Pi

I saw this today on X. It's built on top of the pi coding agent (same one used by openclaw). It uses pi-web-ui ( https://github.com/badlogic/pi-mono/tree/main/packages%2Fweb...).

What surprised me was that it works with oauth tokens from consumer AI subscriptions, and even free ones like Antigravity. Some of this is inherited from pi, but the author did some extra work to build a proxy to allow auth to work even from within the Excel sidebar.

I'm not sure how it works and what the role of the backend is. But I hope to test it side by side with 'Claude for Excel', which I also happened to install today.

(I tried both on something basic just to check they were installed correctly.)

Something, well may things, kill about Microsoft. The Office suite have a wonderful API and loading a JS app with an an interface in the apps works great.

We took an Elm app from our web app and put into Excel to control downloading reports. Works great.

Except you have to side load this and that is a pain - or you have to go through the MS App Store, which is a whole other headache.

If anyone has any advice on making it easy for customers to install Office apps please let me know.

Do you plan supporting the web version of Excel?

I’m a heavy Excel user and would love to try this, but I’m on Linux, so I can use only the online version of Excel.

there are about a dozen startups doing variations of this right now. it's good to see an open source alternative pop up