This demo app uses OpenAI and LangChain.js to process PDF documents and enable intelligent chat interactions. You can use the building blocks of this app to create your own AI apps. Includes complete source code and documentation.
Integrations with OpenAI, Anthropic, xAI, Groq, Replicate, Elevenlabs and more
Landing pages, UI Components, Input Forms, Response Display
API Routes, Auth, Rate limits, Tool Calls, JSON Schemas, Scraping tools
Supabase auth & database, RAG & vector embeddings, Emails, Storage
Stripe/LemonSqueezy, Credit-based usage limits
PostHog, Meta Tags, Sitemap, Programmatic SEO-ready
Chat, Text, Vision, Audio, PDF Analysis, Image Generation & more
Estimated time saved compared to building from scratch
app/(apps)/pdf/*
React Components using TailwindCSS & shadcn/ui
app/api/(apps)/pdf/*
Next.js API Routes, OpenAI Integration, Vector Storage
app/(apps)/pdf/*
Document Processing, Embeddings, Chat Logic