AI features, accounts, and usage-based billing — wired into a product you can charge for.
No credit card. Build your first MVP free.
The AI is the easy part now — it's an API call. The hard part is everything around it: accounts, saving results, and charging people without losing money on usage. ChatAPI wires the AI together with auth and metered billing so you ship a real AI product, not a demo, and get paid for what people use.
“An AI app that turns meeting notes into action items. Users paste notes, get a structured task list, and can save past results. Free users get 5 runs a month, paid users get unlimited for $15/mo.”
Real APIs, connected with just enough glue code to behave like one product.
The routed AI model for generation and reasoning
Accounts so each user has their own history
Free tier plus paid plans with usage limits
Save prompts, results, and per-user usage
Add image understanding or OCR if your product needs it
ChatAPI routes your app to a capable model under the hood and exposes it through one simple interface, so you don't manage model keys or provider quirks yourself.
ChatAPI wires usage caps and metered billing, so free users hit a limit and paid plans are priced against real usage. You set the tiers; the enforcement is in the code.
No. If you can describe what the AI should do and what users pay for it, ChatAPI assembles the working product around that.
Free tier plus paid plans with usage limits
Use Plaid to let customers link their bank account in your AI app.
Use PayPal to take payments at checkout in your AI app.
Accounts so each user has their own history
Use Auth0 to offer single sign-on (SSO) in your AI app.
Add image understanding or OCR if your product needs it
Use ElevenLabs to turn text into lifelike speech in your AI app.
Save prompts, results, and per-user usage
Use Supabase to use a Postgres database in your AI app.
Start free, build your first MVP, and only pay when you're ready to download the code and go live.
Start building free