Block has launched Buzz, an open-source platform enabling collaboration between employees and AI agents, reducing reliance on traditional tools.
Block has introduced Buzz, an open-source platform designed for collaboration between employees and AI agents. This initiative was announced by CEO Jack Dorsey, who emphasized its potential to reduce reliance on platforms like Slack and GitHub.
we're launching BUZZ!
a new groupchat platform for teams of people and agents of all sizes, built to reduce our dependency on slack and github. model-agnostic, decentralized, self-sovereign, and open source. 🐝
— jack (@jack) July 21, 2026
Buzz operates on the Nostr protocol, allowing for a range of functionalities including team chats, direct messaging, voice communication, file sharing, and automated workflows. Users maintain control over their cryptographic keys, ensuring a level of decentralization.
Dorsey described the platform as suitable for teams of any size. However, he noted that the current iteration is still in development, with mobile applications pending and certain automation features yet to be finalized.
Distinct Identities for AI Agents
In Buzz, AI agents are treated as individual entities rather than mere chatbots. Each agent possesses a unique cryptographic identity and can participate in discussions, review code, and engage in project activities. This setup allows for a clear distinction between actions taken by humans and those by AI agents.
Access rights for agents can be customized, allowing for varying levels of interaction with project resources. Buzz supports multiple AI frameworks, including Claude Code from Anthropic and Codex from OpenAI, along with Block's own Goose framework.
The platform uses the Agent Client Protocol (ACP) to facilitate interactions between AI agents and development tools, with options for integrating custom models.
Decentralization with Limitations
Despite its claims of decentralization, Buzz operates with a single relay for each workspace, which manages communication and data flow. This means that while users have control over their keys and can choose operators, the core infrastructure remains centralized around this relay.
Buzz is currently available as a desktop application for macOS, Windows, and Linux, but it is still labeled as a work in progress, with the latest release being version 0.4.22. Mobile versions for iOS and Android are not yet available.
Block recently announced plans to reduce its workforce by 10% to streamline operations, with Dorsey linking the layoffs to a shift towards a more AI-focused structure. Following the announcement, Block's stock saw a significant increase of over 20% in after-hours trading, with shares closing at $54.53 and subsequently trading at $80.38.
In a move to enhance its capabilities, Block has also integrated the AI tool Builderbot, which now contributes approximately 15% of the company’s total coding output. Dorsey has indicated that while AI will play a critical role in the company's direction, human oversight will remain essential for key decisions.
