Full Stack AI
Full Stack AI is an AI-powered Command Line Interface (CLI) that facilitates the swift generation of full-stack Next.js applications. This ...
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What is Full Stack AI?
Full Stack AI is an open-source AI-powered CLI tool that generates complete full-stack Next.js applications from a single text prompt. Users simply set their OpenAI API key as an environment variable and run the command npx fsai gen "Build a clone of Twitter called StackPrompt" to create a production-ready application. The tool automates the entire setup process, delivering a fully configured project with all dependencies installed and best practices implemented.
Key features include generation of Next.js apps with TypeScript and Tailwind CSS, shadcn/ui for frontend components, Prisma/Drizzle schema generation, Postgres/MySQL/SQLite database support, NextAuth.js authentication with GitHub/Discord/Google/Apple login options (or Clerk/Lucia/Kinde alternatives), account settings screens, Stripe payment integration, Resend for transactional emails, CRUD APIs, and light/dark mode support. The app includes pages for creating, updating, and deleting data with automatically generated CRUD APIs.
Full Stack AI is designed for developers who want to rapidly build full-stack applications, create quick prototypes and MVPs, develop educational projects, or scaffold production-ready Next.js apps without spending time on initial setup. It's particularly valuable for developers building SaaS products, commercial projects requiring payment processing, or applications needing user authentication and email functionality.
Full Stack AI pricing
Pricing model: Free
Full Stack AI is open-source and completely free to use. It is available as an npm package with no subscription fees or paid plans. Users only pay for their own OpenAI API key usage, which is based on OpenAI's pricing for the models used during code generation. There is no free tier from OpenAI included - users must have their own OpenAI API account with funds.
Full Stack AI pros
- Open-source and completely free to use
- Generates full Next.js app from single AI prompt
- Uses modern tech stack: TypeScript, Tailwind, Prisma
- Built-in authentication with multiple providers
- Stripe integration for payment processing
- Resend integration for transactional emails
- shadcn/ui components for frontend design
- Automatic CRUD API generation
- Supports multiple databases: Postgres, MySQL, SQLite
- tRPC for remote procedure calls
- Light/dark mode included
- Account settings screen pre-built
- Based on Kirimase with Next.js best practices
- Simple CLI interface: npx fsai gen
- Production-ready code output
- No subscription fees or paid plans
- Quick prototyping and MVP development
- TypeScript throughout the entire stack
Full Stack AI cons
- Requires OpenAI API key (user pays OpenAI costs)
- Only supports Next.js framework
- Limited to OpenAI models for AI generation
- No built-in hosting included
- May need manual customization for complex apps
- CLI-only interface (no web dashboard)
- Database migration requires manual setup
- Depends on OpenAI API availability
- Generated code may need review before production
- No official customer support
Frequently asked questions about Full Stack AI
What is Full Stack AI?
Full Stack AI is an open-source AI-powered CLI tool that generates complete full-stack Next.js applications from a single text prompt. It automates the entire setup process, delivering a fully configured project with TypeScript, Tailwind, Prisma, Postgres, tRPC, authentication, Stripe, and Resend.
How do I use Full Stack AI?
Set your OpenAI API key as an environment variable with export OPENAI_API_KEY=..., then run npx fsai gen "Build a clone of Twitter called StackPrompt". The AI will generate a complete Next.js app with all features configured.
What technologies does Full Stack AI use?
Full Stack AI generates apps with Next.js, TypeScript, Tailwind CSS, shadcn/ui, Prisma/Drizzle, Postgres/MySQL/SQLite, tRPC, NextAuth.js (or Clerk/Lucia/Kinde), Stripe, and Resend. It also includes CRUD APIs and light/dark mode.
Is Full Stack AI free?
Yes, Full Stack AI is open-source and completely free to use. There are no subscription fees or paid plans. However, you must pay for your own OpenAI API usage based on OpenAI's model pricing.
Does Full Stack AI support authentication?
Yes, Full Stack AI includes built-in authentication via NextAuth.js with support for GitHub, Discord, Google, and Apple login. Alternatively, you can use Clerk, Lucia, or Kinde for authentication.
Does Full Stack AI support payment processing?
Yes, Full Stack AI includes Stripe integration for payment processing, making it suitable for commercial projects and SaaS applications that need to handle payments.
What databases does Full Stack AI support?
Full Stack AI supports Postgres, MySQL, and SQLite databases. It generates a Prisma/Drizzle schema that works with any of these database options.
Does Full Stack AI generate CRUD APIs?
Yes, Full Stack AI automatically generates CRUD APIs and creates pages for creating, updating, and deleting data, providing a complete backend for data management.
Can I use Full Stack AI for production apps?
Full Stack AI generates production-ready code with best practices. However, you should review the generated code before deploying to production, especially for complex applications that may need customization.
What is the best use case for Full Stack AI?
Full Stack AI is best for rapid prototyping, MVP development, educational projects, and scaffolding production-ready Next.js apps. It's particularly valuable for developers building SaaS products needing authentication, payments, and email functionality.