Web App
Updated Mar 29, 2026Build
Build full-stack applications with backend and database.
Overview
The Web App project type is for full-stack applications that need a backend server, API endpoints, and optionally a database.
Tech Stack
- Frontend: React + TypeScript + Vite
- Backend: Python FastAPI
- Database: PostgreSQL (optional, managed)
- Styling: Tailwind CSS
What you get
- Full-stack application with frontend and backend
- API endpoints with automatic documentation
- Optional managed PostgreSQL database
- Live preview for both frontend and backend
Backend
The AI agent can:
- Create API endpoints and routes
- Set up database models and migrations
- Handle authentication and authorization
- Integrate external APIs and services
Database
Enable PostgreSQL in the Integrations tab:
- Separate Dev and Prod environments
- Browse data in the built-in Database Browser
- AI generates proper migration files
- Schema is automatically applied on publish
Publishing
Publish to yourname.xaio.app with managed backend hosting. Your API is available at yourname.xaio.app/api/.