From prompt to production in under 30 minutes

Describe your app. Agents build it. Live in 30 minutes.

Protofast turns a plain-English description into a working web and mobile prototype — with real authentication, real payments, and production hosting. No code, no setup, no waiting.

A booking app for dog groomers with calendar scheduling, client profiles, and Stripe payments▍

Describe any app, any industry Prototype it →

No credit card required · Your first prototype is free

Idea to production
< 30 min
Auth & payments
Built in
Platforms per prompt
Web + mobile
Image placeholder Full-width screenshot of the Protofast build console mid-run: a left panel shows a live agent activity feed (Architect, UI, API, Auth, Payments agents each checking off tasks), while the right panel shows the in-progress prototype rendered side by side in a browser frame and a phone frame. A progress bar at the top reads '14:32 elapsed — deploying payment webhooks'.

Teams prototyping with Protofast

Image placeholder A single row of five or six grayscale company logos (startups and agencies), evenly spaced, at roughly 60% opacity so they read as social proof without competing with the page.

Three steps. One of them is yours.

You describe. The agents design, build, wire, and deploy. That's the whole workflow.

01

Describe it

Type what you want to build the way you would explain it to a developer friend. No specs, no wireframes, no tickets — plain English is the whole interface.

02

Agents prototype it

A coordinated set of agents splits the work — data model, API, UI, auth, payments — and builds in parallel while you watch every decision land in real time.

03

It is live

Your prototype deploys to production hosting with a shareable URL, sign-in that works, and payments that can charge real cards. Under 30 minutes, start to finish.

Image placeholder Stylized orchestration diagram: a chat bubble with the user's one-sentence prompt on the left, branching into five glowing agent nodes (Architect, UI, API, Auth, Payments) working in parallel in the middle, converging into a single deployed-app node on the right marked with a green 'LIVE' badge and a URL. Amber/orange connection lines on a dark background to match the page palette.

A real product, not a clickable mockup

Everything a launchable app needs is part of every build — not an add-on you bolt on later.

An agent swarm, not a queue

Specialized agents for architecture, UI, API, and infrastructure build concurrently — the reason a working app takes minutes instead of months.

Auth out of the box

Sign-up, sign-in, sessions, and password reset are wired into every prototype from the first build. Your testers log in like it is a real product — because it is.

Payments built in

Subscriptions, one-time checkout, and customer billing come pre-integrated. Flip the switch from test mode and your prototype starts taking real money.

Web and mobile from one prompt

Every build ships a responsive web app and a mobile-ready experience together. One description, every screen size your users actually have.

Production from minute one

No localhost, no staging purgatory. Builds deploy to managed hosting with TLS and a shareable URL the moment the agents finish.

Iterate by chatting

"Make the dashboard dark." "Add a referral program." Changes ship to the live prototype in minutes — feedback loops measured in coffee sips, not sprints.

What 30 minutes actually looks like

This isn't a demo-day estimate. It's the clock on a typical build, from the moment you submit your description to a production URL you can text to a friend.

  1. 0:00

    You hit "Prototype it"

    Your description lands and the planning agent drafts the architecture.

  2. 0:02

    The swarm fans out

    UI, API, data, auth, and payments agents start building in parallel.

  3. 0:12

    First working preview

    Click through real screens while the agents keep wiring up the backend.

  4. 0:22

    Auth and payments go green

    Test accounts sign in, test cards charge, webhooks fire.

  5. 0:28

    Deployed to production

    A shareable URL with TLS, ready for your first real users.

Image placeholder Tall screenshot of the build timeline view in the Protofast app: a vertical progress rail with timestamped agent events (e.g. 'UI Agent: generated booking calendar component', 'Payments Agent: Stripe webhook verified'), each with a green check. The final entry shows a confetti burst and a 'Your app is live — protofast.app/dog-groomer-pro' link card with an Open button.
“I described the app over lunch. By the time I finished my sandwich, customers could sign up and pay. I've had sprints that delivered less than that sandwich.”
Image placeholder Circular headshot of the quoted founder, warm lighting, neutral background.

Placeholder Name

Founder, Placeholder Co.

Cheaper than one hour of a contractor

Every plan ships production apps with auth and payments. Pick how often you want the magic.

Starter

For trying the magic trick yourself.

$0forever

  • 3 prototypes per month
  • Web + mobile output
  • Auth included
  • Test-mode payments
  • protofast.app subdomain
Start free
Most popular

Pro

For founders shipping for real.

$49per month

  • Unlimited prototypes
  • Live payments — keep 100% of revenue
  • Custom domains
  • Iterate-by-chat on deployed apps
  • Export the full source code
Go Pro

Team

For agencies and product teams.

$199per month

  • Everything in Pro
  • 5 seats, shared workspaces
  • White-label client previews
  • Priority agent capacity
  • SSO and audit logs
Start a team

Your next idea could be live before this meeting ends.

Describe it once. Get a production app with sign-in, payments, and a shareable URL — in less time than a standup that ran long.

Build your first prototype free See how it works