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AI app builder for startups

Build your startup MVP. Keep improving it.

Build your MVP with AI, test the core workflow, and improve the product as feedback comes in. Accounts, data, publishing, and source access support each new release.

Responsive web applicationDatabase and user accountsSource code access
Vibe code your idea. Kleap handles the technical side.

Your idea. Your app. Your AI CTO.

Build the website or app you imagine by talking to AI. Kleap brings creation, infrastructure and the tools to keep your project moving after launch into one place.

You imagine it. Kleap builds it.

Describe what you want to create. AI builds the design, features and logic, then develops the project further with your feedback.

  • Your idea
  • A working app
  • Your next improvements

Data and accounts come with the territory.

Database, authentication and forms: build a client portal or an app with the data and access it needs.

  • Database
  • User sign-in
  • Access and roles

Your tools, inside your app.

Add Stripe, business tools and integrations. Connect your accounts and keys to fit the project to the way you work.

  • Stripe
  • Business tools
  • Integrations

A Guardian after launch.

The Guardian spots website issues and helps you fix them with AI. Return to your project in the chat to make the corrections.

  • Broken links and 404 errors
  • Page and SEO issues
  • Fixes with AI

Everything to go live.

Publish with hosting, connect your domain and follow your activity with analytics and the Search Console integration.

  • Hosting
  • Your domain
  • Analytics and Search Console

Your project keeps moving with you.

Keep your code, connect GitHub and work with AI tools like Claude or ChatGPT. AI assistance and human support on paid plans help you along the way.

  • Your code
  • Claude and ChatGPT
  • AI and human support
Built for early-stage execution

Everything a founder needs between idea and first users

Keep the first version focused while retaining the pieces required to test, learn, and move the product forward.

Functional MVP flows

Create onboarding, dashboards, forms, directories, portals, and other product flows that users can actually operate.

Illustrative example
Pilot team
From your first account to your first project
My team name
Invite a teammate
Create my workspace

Two views of a possible workflow. The displayed data is fictional.

Authentication and user states

Add sign-in and personalized experiences when the product needs more than a public landing page.

A workspace for each role
Personal workspace
Project team
Administration

Forms, data, and analytics

Capture submissions and instrument the product so feedback is tied to real behavior.

Your application data
01Signups
02Projects created
03Feedback received

Fast product iterations

Change copy, screens, and workflows by describing the update instead of rewriting the product brief.

Illustrative exampleEvery reply informs the next step
“How do I invite my team?”
Make invitations clearer
Test with a new user

Source code ownership

Sync with GitHub and keep a path for developers to extend the product as requirements become more specialized.

Keep your source codeThe project moves with you
Your applicationGitHubYour development team

Production publishing

Publish the MVP, connect a custom domain, and share a real product with customers, partners, or investors.

From test version to launch
your-project.kleap.io
Custom domain
Analytics and Search Console
Site Guardian

Connect your services and check the settings before publishing.

A concrete starting point

Describe the MVP you need to validate

Start with one user, one painful problem, and one core workflow. Kleap will turn that scope into a working first version.

A useful MVP scope

Build what proves the idea

The strongest first version is not the one with the most features. It is the smallest product that lets a real user complete the important job.

  • SaaS onboarding flow
  • Customer or member portal
  • Internal operations tool
  • Marketplace or directory
  • Lead capture and waitlist
  • Admin dashboard
  • Custom domain
  • Analytics-ready launch
From prompt to production

A working MVP without waiting for a full development cycle

  1. 01

    Define the smallest useful product

    Describe the user, the core workflow, and the data your MVP needs to capture or display.

  2. 02

    Test the working flow

    Try the workflow end to end, check data and permissions, then invite a few users to test it.

  3. 03

    Iterate and ship

    Use feedback to change the product, connect your domain, sync the source, and publish the next version.

Community

Real projects made with Kleap

Open a live project from Discover and inspect what people are already building and publishing with Kleap.

The right tool for the stage

Prototype or MVP: what is your next step?

Both approaches can be useful. Choose based on what you need to test, your product constraints, and your team.

01What users receive

Kleap MVPA responsive web app published on a real URL.

Interactive prototypeUseful for presenting an interface and testing understanding before development.

02Functional depth

Kleap MVPAuthentication, persistent data, forms, payments, and APIs can be added.

Interactive prototypeCan simulate a workflow without setting up the final data and services.

03Iteration

Kleap MVPRefine the same product through prompts, previews, and releases.

Interactive prototypeAllows visual alternatives to be explored before choosing what to build.

04Engineering handoff

Kleap MVPSync GitHub and keep the generated source for deeper development.

Interactive prototypeThe path to a functional product depends on the prototyping tool.

05Best fit

Kleap MVPStartups testing activation, demand, or one critical workflow.

Interactive prototypeSuited to user research focused on screens and navigation.

Choose Kleap when the next milestone depends on what users do, not only what stakeholders think of the demo.

Questions before you build

AI app builder questions from founders

What to expect when Kleap becomes the fastest route from your product brief to a testable MVP.

Can Kleap build more than a startup landing page?

Yes. Kleap can build working web application flows such as dashboards, forms, portals, directories, and authenticated experiences. The exact scope should stay focused for the first release.

Do I need to know how to code?

No. You can describe the product and request changes in plain language. Source access and GitHub sync remain available when a developer needs deeper control.

Can I connect a custom domain and publish the MVP?

Yes. You can publish to a Kleap URL while testing and connect a custom domain when you are ready to share the product publicly.

What should I include in the first prompt?

Name the target user, the problem, the single most important workflow, the information it needs, and what should happen when the user completes the task.

Can I add payments and external services?

Yes. Describe the payments or integrations you need, such as Stripe or a business API. Provider accounts, keys, permissions and testing must be configured for each service. Verify a complete payment in test mode before opening it to customers.

Is a generated MVP ready for all my users?

Treat the first version as a product to verify. Test the workflow, permissions, forms and error states with a small group before a wider launch. Sensitive or complex requirements may need technical review.

What support is available?

Kleap offers AI assistance and human support with paid plans. Check the current plans for the support and credits that fit your project.

Turn the product brief into something users can try

Describe the smallest version that proves your idea, then refine and publish it from the same workspace.