Berd
Verified Oct 15, 2026 ActiveFree, open-source desktop app from Block for wiring together AI agents, model providers, and automations on a canvas.
Listed on EffectHub ·
Pricing
- Pricing model
- 100% Free
Free and open-source under Apache 2.0; users separately pay whatever their connected model provider charges for API use.
Use tool ↗About Berd
Berd is a desktop application, open-sourced by Block (the company behind Square and Cash App) under the Apache 2.0 license, for building and running AI agents locally. Instead of a chat window, it presents a customizable canvas where a user connects model providers, skills, extensions, and automations, and hands tasks to persistent agents that keep working in the background. It ships as downloadable builds for macOS, Windows, and Linux, with the source published on GitHub. Block has said it will remain free and open-source, with the only cost to users being whatever they pay their chosen model provider directly; a commercial layer for enterprise deployment may come later but was not live at research time.
- API
- Not confirmed
- Last verified
- Oct 15, 2026
Verified sources
- GitHub repository block/berd: Apache-2.0 licence, created 11 August 2026, last pushed 14 October 2026; release v0.6.4 ships macOS (Apple silicon), Windows and Linux builds (15 October 2026)github.com ↗
- Vendor site describes Berd as a playful desktop app for building with AI agents; no pricing or paid plan shown (15 October 2026)berd.xyz ↗
Is Berd legit?
We don’t label tools safe or unsafe. Below are the records we checked ourselves, each with the date we read it.
- Domain registered
- Oct 12, 2025 (1 year ago)Registry record (RDAP), registrar GoDaddy.com, LLC, looked up Sep 6, 2026
- TLS certificate
- Issued by Google Trust Services, valid until Nov 16, 2026Seen in our own connection to the site on Oct 15, 2026
- Last checked
- Oct 15, 2026The site answered
- On the market since
- 2026The vendor's own material, read by us
- Operated by
- Block, Inc., United StatesOur research, card verified Oct 15, 2026
Pros & cons of Berd
Berd is worth a look mainly because a public company with real engineering resources open-sourced it rather than selling it, so there is no subscription risk and the source is inspectable. It is aimed at people comfortable managing their own model provider API keys and costs, not at someone wanting an all-inclusive subscription product.
Pros
- Free and open-source under Apache 2.0, with no subscription fee from Berd itself
- Built and maintained by Block, a company with an existing agent-tooling track record
- Runs locally on macOS, Windows, and Linux rather than only in a browser
- Canvas approach lets several providers and automations be wired together visually
Cons
- Model provider costs are still paid directly, so total cost isn't zero for real use
- Being new and open-source, documentation and stability are less mature than an established commercial product
Best for
- Engineers who want a local, inspectable agent workspace instead of a hosted subscription
- Builders already paying for their own LLM API keys who want a UI on top
- Teams wary of vendor lock-in on agent tooling
Not for
- Non-technical users wanting a plug-and-play assistant with no setup
- Anyone who wants usage bundled into one flat subscription price
Watch out: Free applies to the Berd software itself — every agent action still consumes tokens from whichever model provider is connected, billed separately by that provider.
Alternatives to Berd
Berd head-to-head
Side-by-side fact sheets against the competitors our research or their makers name — pricing, platforms, API and both verdicts on one page.