Do It

A one-click AI helper that lives in the chat sidebar. When opened, it reads the most recent messages in the room, works out what you probably want — an answer, a clarification, a drafted reply — and shows the result. Click any suggestion to send it into the room as a normal message.

It fetches recent m.room.message events through the Widget API, streams them to a GPT-4 chat completion, and renders the reply; sending a suggestion writes a new m.room.message back. A free-form chat box lets you keep prompting.

Built by Beeper as a demo for their widget SDK. It runs against Beeper's fork of the Matrix Widget API (@beeper/matrix-widget-api) and needs a companion backend that holds an OpenAI API key: the widget's own Next.js API routes (/api/chat, /api/completion) proxy to OpenAI so the key stays server-side. Because of those server routes — and because the repo carries no license — it is listed here only, pointing at Beeper's own deployment, and is not built or hosted by Marcade.