ChatAPIBuild software by chatting with APIs.
No credit card. Build your first MVP free.
The fastest way from idea to live MVP
Stop rebuilding what already exists as an API. ChatAPI wires the best ones together so you can ship to real users — then go custom only where it matters.
Three steps.
Plain English. "An app for dog walkers with bookings, payments and SMS reminders."
We propose the stack — the right APIs for payments, messaging, auth, maps, whatever your product needs — and write the glue code that wires them into one product.
Authorise each integration once. ChatAPI compiles the code, generates the config, and your MVP is live.
What founders are saying
Join a community of 1,000+ solo founders building profitable projects.
“I'm not a developer. I gave it a one paragraph idea on a Sunday and by Tuesday morning I had a working booking site with Stripe checkout. Took me longer to set up my Stripe account than to actually build the app.”
“We were quoted $48k for the v1 build. We used ChatAPI for two evenings and a Saturday and shipped something good enough to put in front of our first 12 patients. Not pretty in places — fixed those by hand — but the bones were right.”
“The thing I didn't expect: it kept telling me which APIs to use and why. I'd been going back and forth on Twilio vs MessageBird for a week and it just picked one and gave me reasons. Felt like talking to a senior eng for the first time in a while.”
“Not perfect. I had to redo the email templates and the file structure annoyed me. But it gave me a real codebase in a few hours and that's the part I was actually scared of. Everything else is just work.”
“I tried two other AI builders before this and the code was always weird or it would invent libraries that don't exist. This one used actual Stripe, actual Resend, the README was honest about what I had to set up myself. First tutor on the platform Monday morning.”
“We don't use it for production but it's the cheapest way I've ever found to validate a product idea. We've killed three ideas this quarter in like 4 hours each. Worth the $25 just for the things I now know not to build.”
Simple, usage-based pricing
Pay for what you build. Every plan includes auth, billing, the integrations registry, and the ChatAPI builder.
- 1 project to see how ChatAPI builds your idea end-to-end
- Pick from 100+ pre-vetted APIs
- Auto-generated README with step-by-step API setup instructions
- Preview: README + 1 starter file showing the integration pattern
- Refine your project by chatting — ChatAPI rewrites files on each turn
- View all generated files in your browser
- Ships on Next.js + TypeScript + Convex out of the box
- Connect your own API keys for payments, messaging, and AI
- Community support
- Everything in Free
- Unlimited projects and refinements
- Full MVP codebase — every file, every webhook, every route
- Download complete project as ZIP
- 3× larger responses (12K tokens per turn)
- No daily cooldown — prompt as often as you want
- Project version history (roll back any turn)
- Custom domain for your deployed app
- Priority email support
- Everything in Pro
- 7× more usage than Pro
- Cheaper payment processing
- Team seats and shared workspaces
- Single sign-on (SSO) for your team
- Audit logs for compliance
- Custom API integrations built on request
- Dedicated account manager
- White-glove onboarding
Frequently asked questions
What kind of stuff can I actually build with it?
Anything where most of the work is already an API. If you can describe the product in a paragraph and most of the parts already exist as services — yeah, you can build it here.
How much does it really cost?
Free to start — you get enough usage to build your first MVP without paying anything. Pro is $19/mo, Scale is $99/mo. That's it from us. The APIs you connect charge you directly on their own free tiers.
How do payments work for the apps I build?
You use your own Stripe account. ChatAPI writes the checkout and webhook code, you connect your Stripe keys, and your customers pay you. We don't sit between you and your money and we don't take a cut of your sales.
Is the code actually any good?
It's a real Next.js + TypeScript codebase that runs, uses real SDKs, and is structured the way most modern apps are. Plenty of people have shipped real products from it.
What if I get stuck?
Free plan gets community help. Pro and Scale get email support from us. Either way — the code is yours, the keys are yours, you can show it to any developer and they'll know exactly what's going on.