APP BUILDER / NO-CODE · NICHE
fx0 (Vercel Labs)
Open-source 'mini v0' design agent from Vercel Labs built on libfx (Vercel's agent library from the fx coding agent): describe a page and the agent…
What fx0 (Vercel Labs) does
Open-source 'mini v0' design agent from Vercel Labs built on libfx (Vercel's agent library from the fx coding agent): describe a page and the agent writes it as one HTML file you can view, version, copy or download. Pick any model through Vercel AI Gateway; chats are durable (continue after a crash or timeout). Mainly a showcase and fork-able template for building agents on libfx.
Good for
- Quick single-file landing page or pricing-page prototypes to show a client
- Template for developers building a durable agent app on Vercel
Try this in 10 minutes
- Quick single-file landing page or pricing-page prototypes to show a client. Use the free version: pick one real example from your own business and try just that.
- Template for developers building a durable agent app on Vercel. Put the result next to how you do it today. Is it faster, cheaper or better?
- Describe a simple booking or enquiry form for your business and let it build a first version.
Mini-tasks based on common small-business uses for this tool.
Honest take
No red flags in our notes so far
- GitHub: github.com .
- Not the same as Vercel's v0 product or its 'v0 Mini' model.
- '200+ models' refers to AI Gateway's catalogue.
Our Hype or Fact? checks
Pricing
Free to fork (open source). Hosted demo bills model calls to your own Vercel AI Gateway team after Sign in with Vercel; deployers can optionally offer 5 free prompts per IP.
Prices as listed by the maker when we last checked (2026-10-21); usually in US dollars. Check the website for current prices.
Latest update
- 2026-10-19: Vercel launched fx0 to showcase libfx (fx v0.0.14 made libfx durable on 16 Oct).
Is fx0 (Vercel Labs) worth it? Quick answers
Is fx0 (Vercel Labs) worth it?
fx0 (Vercel Labs) is a niche pick: useful for specific cases, but most small businesses can skip it for now. It is free or open source, so the main cost is your time to set it up.
How much does fx0 (Vercel Labs) cost?
Free to fork (open source). Hosted demo bills model calls to your own Vercel AI Gateway team after Sign in with Vercel; deployers can optionally offer 5 free prompts per IP.
What is fx0 (Vercel Labs) used for?
Open-source 'mini v0' design agent from Vercel Labs built on libfx (Vercel's agent library from the fx coding agent): describe a page and the agent… Typical uses: quick single-file landing page or pricing-page prototypes to show a client; template for developers building a durable agent app on Vercel.