Jacob Lee
b153681b2d
* Adds beginning of integration contribution guide * Fix typo * Adds more context to each integration category * Adds example PRs and some integration specific information to the contributing guide * Updates integration guide with memory, tools, and vector store pages * Update integration contribution guide, fix and add links * Use relative links * Revert to absolute paths
🦜️🔗 LangChain.js
⚡ Building applications with LLMs through composability ⚡
Looking for the Python version? Check out LangChain.
Production Support: As you move your LangChains into production, we'd love to offer more comprehensive support. Please fill out this form and we'll set up a dedicated support Slack channel.
Quick Install
yarn add langchain
import { OpenAI } from "langchain/llms/openai";
Supported Environments
LangChain is written in TypeScript and can be used in:
- Node.js (ESM and CommonJS) - 18.x, 19.x, 20.x
- Cloudflare Workers
- Vercel / Next.js (Browser, Serverless and Edge functions)
- Supabase Edge Functions
- Browser
- Deno
🤔 What is this?
Large language models (LLMs) are emerging as a transformative technology, enabling developers to build applications that they previously could not. But using these LLMs in isolation is often not enough to create a truly powerful app - the real power comes when you can combine them with other sources of computation or knowledge.
This library is aimed at assisting in the development of those types of applications.
📖 Full Documentation
For full documentation of prompts, chains, agents and more, please see here.
Relationship with Python LangChain
This is built to integrate as seamlessly as possible with the LangChain Python package. Specifically, this means all objects (prompts, LLMs, chains, etc) are designed in a way where they can be serialized and shared between languages.
The LangChainHub is a central place for the serialized versions of these prompts, chains, and agents.
💁 Contributing
As an open source project in a rapidly developing field, we are extremely open to contributions, whether it be in the form of a new feature, improved infra, or better documentation.
Check out our contributing guidelines for instructions on how to contribute.