Jack Dorsey's payments and technology company Block has launched Buzz, a free, open-source workspace platform built on the Nostr protocol that assigns cryptographic identities to artificial intelligence agents — putting it on a direct collision course with entrenched enterprise tools like Slack and GitHub. The launch represents one of the most concrete attempts yet to bring decentralized, censorship-resistant communication infrastructure into the emerging world of agentic AI workflows, where software agents increasingly need to coordinate, authenticate, and collaborate with one another at scale.
What Buzz Actually Does
At its core, Buzz is a workspace designed not for human teams but for AI agents operating autonomously. Each agent running on the platform receives its own cryptographic identity — a verifiable, self-sovereign key pair anchored to the Nostr protocol — meaning that agent actions, communications, and code contributions can be authenticated without relying on any centralized identity provider. This matters more than it might initially appear. As agentic AI systems proliferate across software development pipelines, customer operations, and data processing, the question of who — or what — performed a given action is becoming critical for both security and accountability. Buzz attempts to solve that problem at the protocol layer.
Nostr, which stands for Notes and Other Stuff Transmitted by Relays, is a lightweight, open communication protocol that gained significant traction in the Bitcoin community as a censorship-resistant alternative to traditional social media infrastructure. Dorsey himself has been an outspoken backer of Nostr, having contributed funding to its development in prior years. Building Buzz on top of Nostr is a logical extension of that philosophical commitment — applying the protocol's identity and relay architecture to an entirely different problem domain: multi-agent software collaboration.
A Direct Challenge to Slack and GitHub
The choice to position Buzz explicitly against Slack and GitHub is strategically pointed. Slack, owned by Salesforce, dominates team communication in enterprise environments and carries a subscription-based revenue model that runs into the billions annually. GitHub, owned by Microsoft, is the world's dominant code hosting and version control platform, with over 100 million registered developers. Both platforms were built for human users, with human authentication, human-readable interfaces, and human-centric permission systems. Neither was architected with the assumption that a substantial portion of their active users would eventually be software agents rather than people.
That gap in design philosophy is precisely where Buzz is inserting itself. By treating AI agents as first-class citizens with native cryptographic identities rather than proxies operating under human user accounts, Buzz is making an architectural bet that the next generation of software development infrastructure will need to be rebuilt — not retrofitted — for agentic workloads. The free and open-source distribution model accelerates adoption friction removal, lowering the barrier for developers and organizations already experimenting with AI agent pipelines to deploy Buzz without procurement hurdles.
Nostr as Infrastructure, Not Ideology
It would be easy to frame Buzz purely as a crypto-ideological project — another decentralization play from a Bitcoin-aligned founder. That framing would be reductive and would miss the genuine infrastructure argument. The reason Nostr is relevant here is not primarily its censorship resistance, though that property carries real value for organizations wary of platform risk. The more immediate advantage is its relay-based architecture, which allows messages and events to propagate across a distributed network of relays without a single point of failure or a single corporate entity controlling access. For AI agent workflows that may span organizational boundaries, cloud providers, and geographic jurisdictions, this kind of neutral communication substrate has practical engineering appeal beyond its political connotations.
Cryptographic identity, similarly, is not a philosophical luxury in multi-agent systems — it is a functional necessity. When an AI agent pushes code to a repository, triggers a deployment pipeline, or sends instructions to another agent, the receiving system needs a reliable way to verify the source and integrity of that action. Traditional username-and-password or OAuth-based identity systems were not designed with non-human actors in mind. Public-key cryptography, the foundation of both Bitcoin and Nostr's identity model, provides a more robust primitive for this use case.
What This Means
Block's launch of Buzz signals that the competition for AI agent infrastructure is moving beyond model performance and into the underlying plumbing of how agents communicate, authenticate, and collaborate. By releasing Buzz as free and open-source software built on an open protocol, Block is making a deliberate bet that developer adoption and ecosystem growth matter more than near-term monetization — a playbook familiar from the early days of both Linux and Bitcoin itself. Whether Buzz achieves meaningful developer traction against the gravitational pull of GitHub's network effects and Slack's enterprise entrenchment remains to be seen, but the architectural argument it makes — that AI agents deserve native cryptographic identity at the infrastructure layer — is one the broader technology industry will have to reckon with regardless of which platform ultimately wins. Dorsey has long believed that open protocols outlast closed platforms. Buzz is his latest attempt to prove the thesis in a new arena.
Written by the editorial team — independent journalism powered by Bitcoin News.