LangChain.js Files

Building applications with LLMs through composability

This is an exact mirror of the LangChain.js project, hosted at https://github.com/hwchase17/langchainjs. SourceForge is not affiliated with LangChain.js. For more information, see the SourceForge Open Source Mirror Directory.

The interactive file manager requires Javascript. Please enable it or use sftp or scp.
You may still browse the files here.

Name	Modified	Size	InfoDownloads / Week
Parent folder
@langchain_core==1.0.2 source code.tar.gz	2025-10-27	9.0 MB	0
@langchain_core==1.0.2 source code.zip	2025-10-27	10.9 MB	3
README.md	2025-10-27	150 Bytes	0
Totals: 3 Items		20.0 MB	3

What's Changed

Patch Changes

6426eb6: fix chunks constructed with tool calls + chunks
619ae64: Add BaseMessage.toFormattedString()

Source: README.md, updated 2025-10-27

Other Useful Business Software

The All-in-One Commerce Platform for Businesses - Shopify

Shopify offers plans for anyone that wants to sell products online and build an ecommerce store, small to mid-sized businesses as well as enterprise

Shopify is a leading all-in-one commerce platform that enables businesses to start, build, and grow their online and physical stores. It offers tools to create customized websites, manage inventory, process payments, and sell across multiple channels including online, in-person, wholesale, and global markets. The platform includes integrated marketing tools, analytics, and customer engagement features to help merchants reach and retain customers. Shopify supports thousands of third-party apps and offers developer-friendly APIs for custom solutions. With world-class checkout technology, Shopify powers over 150 million high-intent shoppers worldwide. Its reliable, scalable infrastructure ensures fast performance and seamless operations at any business size.

Learn More

Level Up Your Cyber Defense with External Threat Management

See every risk before it hits. From exposed data to dark web chatter. All in one unified view.

Move beyond alerts. Gain full visibility, context, and control over your external attack surface to stay ahead of every threat.

Try for Free

Recommended Projects

LangChain
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...
Arch
Arch is an intelligent Layer 7 gateway designed to protect, observe, and personalize LLM applications (agents, assistants, co-pilots) with your APIs. Engineered with purpose-built LLMs, Arch handles the critical but undifferentiated tasks related to the handling and processing of prompts,...
LangGraph
LangGraph is a library for building stateful, multi-actor applications with LLMs, used to create agent and multi-agent workflows. Compared to other LLM frameworks, it offers these core benefits: cycles, controllability, and persistence. LangGraph allows you to define flows that involve cycles,...
Ollama Python
ollama-python is an open-source Python SDK that wraps the Ollama CLI, allowing seamless interaction with local large language models (LLMs) managed by Ollama. Developers use it to load models, send prompts, manage sessions, and stream responses directly from Python code. It simplifies...
PydanticAI
When I first found FastAPI, I got it immediately. I was excited to find something so innovative and ergonomic built on Pydantic. Virtually every Agent Framework and LLM library in Python uses Pydantic, but when we began to use LLMs in Pydantic Logfire, I couldn't find anything that gave me the...

LangChain.js Files

Building applications with LLMs through composability

Get an email when there's a new version of LangChain.js

What's Changed

Patch Changes