StartKit.AI

StartKit.AI is a boilerplate codebase for building AI-powered SaaS applications. It provides pre-built REST API routes for common AI functionality, user authentication (magic link, token-based), subscription billing via Stripe or Lemon Squeezy, vector database setup with Pinecone for retrieval-augmented generation (RAG), and rate limiting with usage monitoring. The codebase includes demo applications such as a ChatGPT clone, PDF chat, and image generation. It supports multiple AI providers (OpenAI, Anthropic, Groq, and self-hosted Llama) with automatic fallback mechanisms. The frontend is built with React and Tailwind CSS, and the backend uses Node.js. Additional features include an admin dashboard, transactional email integration via Resend, and comprehensive documentation with guides. The boilerplate targets developers who want to quickly ship an AI wrapper or SaaS product without building infrastructure from scratch.