A useful product needs more than a polished home page. People need to sign in, save work, upload files, pay, receive messages, search, and sometimes ask AI to take a structured action. PromptUI Builder can carry those needs into the app plan and generated code instead of leaving them as an afterthought.
Start with the job, not the provider name
You can ask for the outcome in ordinary language: “let customers create an account and save their bookings” or “charge for a subscription and email a receipt”. If you already know the service you want, name it. PromptUI keeps explicit choices such as Clerk, Supabase, Firebase, Auth0, Stripe, Resend, Neon, or MongoDB Atlas attached to the build instead of quietly replacing them.
Sign-in and stored data
Builder can generate the screens, client setup, server boundaries, hooks, and queries for supported sign-in and database services. In technical terms, these are provider-aware integration contracts. Until the project has valid credentials and a live service, the preview may use clearly labelled sample or local data. PromptUI should not describe that preview as a production database.
Payments, email, files, analytics, and business tools
The integration catalog covers more than 30 provider contracts across payments, email, uploads, storage, analytics, search, commerce, customer systems, content systems, and workflows. Examples include Stripe, PayPal, Resend, SendGrid, Cloudinary, UploadThing, PostHog, Shopify, HubSpot, Sanity, Algolia, Slack, Notion, and Airtable.
This means Builder can prepare the right packages, environment-variable names, and safe server-versus-browser boundaries. It does not mean every service is automatically connected to every generated app. The business still owns its external account and must provide or authorize the credentials required by that provider.
AI features and tool calling
PromptUI can generate apps that call AI models and structured tools through supported server-side patterns, including the Vercel AI SDK. Tool calling simply means the AI can request a defined action—for example, search a catalog or create a support ticket—instead of returning only text. The action still needs a real implementation, authorization, validation, and clear user approval where it changes data or spends money.
How PromptUI keeps the product honest
- The build plan keeps the requested services and important success criteria visible.
- The preview distinguishes working live connections from sample behavior.
- Automated checks can report render, route, interaction, and implementation evidence without turning an untested item into a pass.
- You can refine visually, inspect the files, export the code, connect credentials, and publish from the same project record.
Choose the right starting point
Use integration starter packs when you already know the services you need, or describe the business outcome in Builder and review the proposed plan. For a deeper look at verification, read how PromptUI keeps evidence attached.