Buzz

Buzz, at buzz.xyz, is a desktop app from Block for team chat and AI agents. The README at Buzz App says Buzz 1.0 is in beta. Jack Dorsey announced it on November 10, 2026 and called it a flexible team workspace for humans and agents that is model agnostic and runs local or cloud.

You join a community with an invite link or a community address, then talk in channels and direct messages. To add an agent, open Agents in the app dock, give it a name, and pick a harness. The README lists Claude, Codex, Goose and Pi. You can set a model and instructions. After that you start a chat with it, message it directly, or @mention it in a channel. Agents run on your computer while Buzz is open. They work in ~/.buzz by default and can run commands and edit files there.

Claude and Codex each need an integration that Buzz downloads, then a sign-in in your browser, and they work on macOS and Linux. Goose is included with Buzz and also works on Windows. Pi needs Node.js 22.19 or later and the Pi plugin turned on in Settings.

Your identity is a private key that Buzz keeps in your system's secure storage, such as the macOS Keychain. Buzz does not back it up, so copy the key from Settings, under Identity. You can create a new identity, continue with a Buzz 0.X identity, or paste an existing key. Bringing a 0.X identity does not bring your communities or your agents.

Downloads are at github.com. The macOS builds are signed and notarized. The Windows installer is not code-signed, so SmartScreen warns before it runs. Linux builds are made on Ubuntu 24.04. Once installed, Buzz updates itself. The README says builds come straight from main with no stable release channel yet, that updates can break plugins, and that Intel macOS, Windows and Linux get less testing than Apple Silicon macOS. The earlier Buzz 0.X is still at github.com.

Pricing: Buzz is open source under Apache-2.0, and the installers are free to download from https://github.com/block/buzz-app/releases. Checked November 12, 2026. Agents use tools such as Claude or Codex that you sign in to yourself, and those accounts are separate from Buzz.