LangChain.js

LangChain.js is a framework designed for developing applications powered by large language models. It enables the construction of complex LLM workflows by chaining together interoperable components and integrating with third-party services. The framework provides support for agents, prompt management, and intricate application logic. It offers a broad ecosystem for various LLM application elements, including chains, agents, tools, and memory. While capable of RAG, its general-purpose nature extends to orchestrating diverse components, making it suitable for applications where RAG is one part of a larger system.