The LangChain libraries themselves are made up of several different packages:
@langchain/core: Base abstractions and LangChain Expression Language.@langchain/community: Third party integrations.langchain: Chains, agents, and retrieval strategies that make up an application's cognitive architecture.
LlamaIndex.TS offers the core features of LlamaIndex for popular runtimes like Node.js (18, 20, 22), Deno, Bun, and Cloudflare Workers.
- Vercel AI SDK: https://github.com/nicoalbanese/ai-sdk-fundamentals
- Chrome AI: https://github.com/jeasonstudio/chrome-ai
- Self-hosted Ollama app on Fly.io: https://github.com/fly-apps/self-host-ollama