Developer Platform
Everything you need to build, test, and publish apps on KidsBuild.
Get started in seconds:
Quickstart
Get your first app running in under 5 minutes with our step-by-step guide.
SDK Reference
Full documentation for the @kidsbuild/sdk package with examples.
AI Prompts
Copy-paste prompts for Claude Code to scaffold, build, and publish apps.
API Explorer
Interactive API documentation with try-it-out functionality.
Database
Learn about protected tables, migrations, and the declarative schema system.
CLI
Command-line tools for login, development, and publishing workflows.
What You Can Build
KidsBuild apps run in a secure sandbox with access to platform features like user accounts, wallets (BuildBucks and TutorBucks), and persistent state storage. Here are some ideas:
- Games -- Arcade games, puzzles, multiplayer experiences
- Productivity tools -- Study aids, note-taking apps, calculators
- Creative tools -- Drawing apps, music makers, story builders
- Social apps -- Chat rooms, collaboration tools, trading systems
AI-First Development
We believe the best way to learn coding in 2026 is alongside AI. Our platform is designed to work seamlessly with tools like Claude Code, Cursor, and v0:
- Copy-paste prompts -- Our Prompt Library has ready-to-use prompts for common tasks
- Declarative schemas -- Describe your data in JSON, we handle the SQL
- Type-safe SDK -- Full TypeScript support with autocomplete and documentation
- CLI automation -- Publish and manage apps from your terminal or AI assistant
Protected by Design
Building on KidsBuild means your app runs in a safe environment:
- Sandboxed execution -- Apps can't access system resources or other apps' data
- Protected database -- You define schemas, we prevent destructive operations
- Review process -- All published apps are reviewed before going live
- Rate limiting -- Built-in protection against abuse
Downloads
Need Help?
Building your first app? Check out our Quickstart Guide or browse the AI Prompts Library for copy-paste solutions. You can also book a peer tutoring session with another kid who's already built apps on the platform.