VibeSDK Open source

What it does

VibeSDK is Cloudflare's open-source platform for running a full "vibe coding" product: a user describes what they want, an AI agent plans, edits, deploys and iterates on a complete full-stack app, with a human reviewing along the way. It's meant less as an end-user product and more as the SDK/reference implementation you'd fork to build your own AI app-builder on Cloudflare's infrastructure.

What is inside

• ThinkAgent, which manages the core model loop driving planning and edits
• SpaceDO, an isolated per-workspace Durable Object
• Cloudflare Artifacts for git-like history, restore points and rollback without rewriting history
• Worker Loader for bundling generated apps
• A live in-browser code editor showing generated files and changes in real time
• Dynamic Workers previews so generated apps run without a persistent dev server
• Error inspection tooling that surfaces browser console output for the agent to fix
• Model flexibility via multiple providers routed through Cloudflare AI Gateway

Works with

Runs entirely on Cloudflare's platform (Workers, Durable Objects, AI Gateway) and is provider-agnostic on the model side via AI Gateway routing.

How to install or connect

A "Deploy to Cloudflare" button is provided for the fastest path. For local development:

git clone [repo] && cd vibesdk && bun install && bun run setup && bun run dev

Requires Node.js 18+, Bun, and a Cloudflare account.

Maintenance and safety

MIT licensed and maintained directly by Cloudflare, with 5,300+ stars, 1,300+ forks and over 1,100 commits — a credible, officially backed project. Because it lets an AI agent generate and deploy full applications on your Cloudflare account, review its default permissions and cost controls (Workers/Durable Object usage) before opening it up to untrusted end users.

Who should use it

Teams and developers who want to build their own AI-powered app-generation product on Cloudflare's stack rather than starting from scratch, or who want a reference architecture for combining an LLM agent loop with live previews and rollback.