vercel-labs/fx0
A lightweight design agent built with libfx. Describe a page and an agent writes it as one HTML file.
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README & documentation
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fx0 is an open-source, lightweight design agent built with libfx. You describe a page and an agent writes it as one HTML file. fx0 is also a working example of an app built on libfx. One createFxAgent() call gives it the agent loop, streaming, tool calls, retries and durable sessions, and createFxEngine() runs each subagent. Try it at fx0.vercel.dev, or clone it and make it your own. fx0 is the app. libfx is the agent inside it. Vercel keeps the agent's work safe while it runs. fx0 runs one durable libfx agent per server. libfx keeps each chat's conversation as a session and backs every turn with Vercel Queues, so a turn finishes even when the function running it dies. fx0 has no code of its own to recover a turn. Durability takes three pieces. The agent. fx0 passes no durability option, so createFxAgent() uses libfx's default: on Vercel, libfx…
Read the full README ↗ · Preview checked 2026-11-01T06:52:40.441Z
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What this repository does
A lightweight design agent built with libfx. Describe a page and an agent writes it as one HTML file.
Repository facts
- Owner
- vercel-labs
- Primary language
- TypeScript
- Stars
- 405
- Forks
- 73
- Open issues + pull requests
- 7
- License
- Apache-2.0
- Archived
- No
- Default branch
- main
- Created
- 2026-10-19T17:27:02.000Z
- Last push
- 2026-10-25T15:02:30.000Z
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Source and freshness
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