create-t3-turbo-ai
Freet3 based, Langchain-friendly boilerplate for building type-safe, full-stack, LLM-powered web apps with Nextjs and Prisma 
FreeFree tier
About create-t3-turbo-ai
Create-t3-turbo-ai is an open-source starter repository designed for building full-stack, type-safe, LLM-powered web applications. It combines the T3 Stack (tRPC, Prisma, Next.js) with Turborepo for monorepo management, OpenAI for AI capabilities, and Langchain for LLM orchestration. The project is currently a work in progress but includes a robust folder structure, authentication via next-auth, and a quick start guide for local development and deployment to Vercel.
Key Features
Monorepo management with Turborepo
End-to-end type safety with tRPC and Prisma
LLM integration via OpenAI and Langchain
Next.js 13 and React 18 frontend
Authentication using next-auth
Tailwind CSS for styling
CI pipeline with pnpm cache setup in GitHub Actions
Pros & Cons
Pros
- Full type safety from database to API to frontend
- Modern and scalable monorepo architecture with Turborepo
- Direct integration with popular LLM tools (OpenAI, Langchain)
- Comprehensive starter with authentication and database already configured
- Deployable to Vercel with clear instructions
Cons
- Project is marked as Work in Progress (WIP) with features yet to come
- SQLite database not recommended for serverless deployments
- Limited documentation beyond the README and code comments
- Requires prior knowledge of the T3 stack and Langchain
Best For
Building full-stack web applications with integrated large language model featuresRapid prototyping of AI-powered apps using modern full-stack technologiesLearning and experimenting with Langchain, tRPC, and Prisma in a monorepo setup
FAQ
What is the recommended way to deploy this project?
The Next.js application can be deployed to Vercel. For the database, it is recommended to use a hosted PostgreSQL provider like Railway rather than SQLite in serverless environments.
What technologies are included in this starter?
The starter uses Turborepo, tRPC, Prisma, Next.js 13, React 18, Tailwind CSS, OpenAI, Langchain, and next-auth for authentication.
How do I set up the project locally?
Install dependencies with pnpm i, configure Prisma to use SQLite or your preferred database, copy .env.example to .env and add the OPENAI_API_KEY, then run pnpm db:push to apply the schema.