RepoGuard
Updated 7 h ago
LangChain

Organization

Public GitHub footprint of LangChain

@langchain-ai
View profile on GitHub
United States of America

266

Public repositories

366,070

Total stars

22,942

Followers

LangChain, represented by the username langchain-ai, has a significant public presence on GitHub, primarily in the realms of Python and TypeScript. Their notable repositories include langchain, langgraph, and deepagents, which focus on agent engineering and related technologies, showcasing a wide range of projects and contributions.

Top languages

Python 46TypeScript 26Jupyter Notebook 15Go 3Rich Text Format 2JavaScript 2MDX 1Shell 1

Public repositories

langchain

★147,897

The agent engineering platform.

Python
Updated Oct 16, 2026

langgraph

★43,329

Build resilient agents.

Python
Updated Oct 16, 2026

deepagents

★30,317

The batteries-included agent harness.

Python
Updated Oct 16, 2026

langchainjs

★18,272

The agent engineering platform

TypeScript
Updated Oct 16, 2026

openwiki

★17,198

OpenWiki is a CLI that writes and maintains agent documentation for your codebase.

TypeScript
Updated Oct 16, 2026

open_deep_research

★12,680

No description provided for this repository.

Python
Updated Oct 15, 2026

open-swe

★11,030

An Open-Source Asynchronous Coding Agent

Python
Updated Oct 16, 2026

rag-from-scratch

★9,500

No description provided for this repository.

Jupyter Notebook
Updated Oct 16, 2026

local-deep-researcher

★9,373

Fully local web research and report writing assistant

Python
Updated Oct 15, 2026

opengpts

★6,709

No description provided for this repository.

Rich Text Format
Updated Oct 13, 2026

chat-langchain

★6,466

No description provided for this repository.

TypeScript
Updated Oct 15, 2026

open-canvas

★5,479

📃 A better UX for chat, writing content, and coding with LLMs.

TypeScript
Updated Oct 15, 2026

langchain-mcp-adapters

★3,651

LangChain 🔌 MCP

Python
Updated Oct 14, 2026

langgraphjs

★3,357

Framework to build resilient language agents as graphs.

TypeScript
Updated Oct 15, 2026

agent-chat-ui

★3,219

🦜💬 Web app for interacting with any LangGraph agent (PY & TS) via a chat interface.

TypeScript
Updated Oct 15, 2026

langchain-academy

★2,953

No description provided for this repository.

Jupyter Notebook
Updated Oct 15, 2026

social-media-agent

★2,852

📲 An agent for sourcing, curating, and scheduling social media posts with human-in-the-loop.

TypeScript
Updated Oct 16, 2026

langchain-nextjs-template

★2,540

LangChain + Next.js starter template

TypeScript
Updated Oct 14, 2026

agents-from-scratch

★2,390

Build an email assistant with human-in-the-loop and memory

Jupyter Notebook
Updated Oct 15, 2026

langserve

★2,326

LangServe 🦜️🏓

JavaScript
Updated Oct 15, 2026

langmem

★1,705

No description provided for this repository.

Python
Updated Oct 15, 2026

deepagentsjs

★1,609

The batteries included agent harness.

TypeScript
Updated Oct 15, 2026

langgraph-swarm-py

★1,580

For your multi-agent needs

Python
Updated Oct 15, 2026

openwork

★1,459

No description provided for this repository.

TypeScript
Updated Oct 15, 2026

langchain-skills

★1,292

No description provided for this repository.

TypeScript
Updated Oct 15, 2026

openevals

★1,225

Readymade evaluators for your LLM apps

Python
Updated Oct 15, 2026

langchain-extract

★1,192

🦜⛏️ Did you say you like data?

Rich Text Format
Updated Oct 15, 2026

langsmith-sdk

★1,081

LangSmith Client SDK Implementations

Python
Updated Oct 15, 2026

mcpdoc

★1,031

Expose llms-txt to IDEs for development

Python
Updated Oct 15, 2026

react-agent

★854

LangGraph template for a simple ReAct agent

Python
Updated Oct 15, 2026

deep-agents-from-scratch

★848

No description provided for this repository.

Jupyter Notebook
Updated Oct 15, 2026

deep_research_from_scratch

★800

No description provided for this repository.

Jupyter Notebook
Updated Oct 15, 2026

agentevals

★750

Readymade evaluators for agent trajectories

Python
Updated Oct 15, 2026

langgraph-codeact

★731

No description provided for this repository.

Python
Updated Oct 15, 2026

agent-protocol

★687

No description provided for this repository.

Python
Updated Oct 13, 2026

langgraph-101

★686

Learn about the fundamentals of LangGraph through a series of notebooks

Jupyter Notebook
Updated Oct 15, 2026

lca-lc-foundations

★679

No description provided for this repository.

TypeScript
Updated Oct 16, 2026

langgraph-bigtool

★558

Build LangGraph agents with large numbers of tools

Python
Updated Oct 15, 2026

langgraph-example

★517

No description provided for this repository.

Python
Updated Oct 16, 2026

memory-agent

★482

No description provided for this repository.

Python
Updated Oct 15, 2026

docs

★431

Unified LangChain documentation.

MDX
Updated Oct 16, 2026

langchain-google

★404

🦜🔗 LangChain interfaces to Google's suite of AI products (e.g. Gemini & Vertex AI)

Python
Updated Oct 14, 2026

langchain-aws

★352

Build LangChain Applications on AWS

Python
Updated Oct 15, 2026

data-enrichment

★258

LangGraph Studio template for creating an agent that does web research to genearte or enrich structured data.

Jupyter Notebook
Updated Oct 15, 2026

memory-template

★249

No description provided for this repository.

Python
Updated Oct 13, 2026

langchain-nvidia

★217

No description provided for this repository.

Jupyter Notebook
Updated Oct 15, 2026

langgraph-cua-py

★217

An implementation of a computer use agent (CUA) using LangGraph

Python
Updated Oct 14, 2026

openshell-deepagent

★193

A general-purpose coding agent that runs inside an NVIDIA OpenShell sandbox, orchestrated by Deep Agents and powered by NVIDIA Nemotron. The agent writes and executes code in an isolated, policy-governed Linux environment.

Python
Updated Oct 15, 2026

retrieval-agent-template

★179

No description provided for this repository.

Python
Updated Oct 15, 2026

intro-to-langsmith

★168

Resources for the LangSmith Academy Course

Jupyter Notebook
Updated Oct 14, 2026

langsmith-skills

★162

No description provided for this repository.

Python
Updated Oct 14, 2026

langchain-azure

★146

Build secure LangChain applications on Azure

Jupyter Notebook
Updated Oct 15, 2026

langchain-mongodb

★127

Integrations between MongoDB, Atlas, LangChain, and LangGraph

Python
Updated Oct 14, 2026

react-agent-js

★118

No description provided for this repository.

TypeScript
Updated Oct 15, 2026

paid-media-agent

★109

Open-source paid media agent for Google Ads, Meta Ads, Reddit, LinkedIn, X, and OpenAI Ads: analysis, reports, and reviewed changes, built on Deep Agents.

Python
Updated Oct 13, 2026

helm

★97

Repository hosting Langchain helm charts.

Shell
Updated Oct 16, 2026

langsmith-cli

★80

A coding agent-first CLI for interacting with LangSmith.

Go
Updated Oct 15, 2026

langchain-elastic

★78

Elasticsearch integration into LangChain

Python
Updated Oct 15, 2026

lca-langchainV1-essentials

★77

No description provided for this repository.

Jupyter Notebook
Updated Oct 16, 2026

new-langgraphjs-project

★76

Empty langgraph project template.

TypeScript
Updated Oct 13, 2026

langsmith-claude-code-plugins

★73

LangSmith plugins for Claude Code

TypeScript
Updated Oct 16, 2026

langchain-redis

★69

No description provided for this repository.

Python
Updated Oct 14, 2026

lca-langgraph-essentials

★67

No description provided for this repository.

Jupyter Notebook
Updated Oct 15, 2026

langchain-litellm

★59

🦜🔗 LangChain interface to LiteLLM

Python
Updated Oct 15, 2026

streaming-cookbook

★59

Documentation and examples around LangChain's streaming capabilities.

TypeScript
Updated Oct 15, 2026

langsmith-agent-lifecycle-workshop

★53

Workshop series teaching the AI Engineering Lifecycle using LangChain, LangGraph, and LangSmith

Jupyter Notebook
Updated Oct 14, 2026

memory-agent-js

★53

No description provided for this repository.

TypeScript
Updated Oct 12, 2026

langchain-snowflake

★45

No description provided for this repository.

Python
Updated Oct 14, 2026

text-to-sql-agent

★44

No description provided for this repository.

Jupyter Notebook
Updated Oct 12, 2026

lca-deepagents

★37

LangChain Academy Course on Deep Agents

TypeScript
Updated Oct 14, 2026

langchain-ibm

★37

No description provided for this repository.

Python
Updated Oct 14, 2026

retrieval-agent-template-js

★36

No description provided for this repository.

TypeScript
Updated Oct 14, 2026

langsmith-java

★33

LangSmith Java SDK.

Kotlin
Updated Oct 15, 2026

langsmith-go

★33

No description provided for this repository.

Go
Updated Oct 15, 2026

async-deep-agents

★31

No description provided for this repository.

Python
Updated Oct 14, 2026

smithtune

★29

LangSmith Post-Training CLI

Python
Updated Oct 15, 2026

data-enrichment-js

★28

No description provided for this repository.

TypeScript
Updated Oct 12, 2026

langchain-unstructured

★23

No description provided for this repository.

Python
Updated Oct 12, 2026

deep-agent-template

★21

No description provided for this repository.

Python
Updated Oct 14, 2026

terraform

★20

Repository containing langchain terraform modules

HCL
Updated Oct 15, 2026

managed-deepagents

★20

Managed deepagents

Unknown Language
Updated Oct 14, 2026

cookbooks

★18

A repository of curated code snippets and examples of common design patterns, features and best practices for building powerful, context-rich applications with LangGraph and LangSmith

Python
Updated Oct 13, 2026

langgraph-101-ts

★17

No description provided for this repository.

TypeScript
Updated Oct 12, 2026

langchain-upstage

★17

No description provided for this repository.

Python
Updated Oct 12, 2026

modular-workshops

★14

LangChain, DeepAgents, and LangSmith workshops

Jupyter Notebook
Updated Oct 13, 2026

langsmith-codex-plugins

★14

LangSmith plugin for OpenAI Codex

TypeScript
Updated Oct 12, 2026

langchain-ai21

★12

No description provided for this repository.

Python
Updated Oct 12, 2026

langsmith-data-migration-tool

★11

A CLI tool to help users migrate data from their LangSmith cloud/self-hosted workspaces

Python
Updated Oct 16, 2026

macaw-design-system

★10

Shared design system for LangChain products

TypeScript
Updated Oct 15, 2026

langchain-azure-js

★10

No description provided for this repository.

JavaScript
Updated Oct 12, 2026

fleet-deepagents-export

★9

Self-contained code export for LangSmith Fleet deep agents

Python
Updated Oct 14, 2026

langchain-sema4

★6

No description provided for this repository.

Python
Updated Oct 15, 2026

gen-ui-workflow

★5

No description provided for this repository.

Python
Updated Oct 14, 2026

terraform-provider-langsmith

★4

No description provided for this repository.

Go
Updated Oct 15, 2026

simple-agent-template

★4

No description provided for this repository.

Python
Updated Oct 14, 2026

langsmith-cursor-plugins

★4

LangSmith plugins for Cursor

TypeScript
Updated Oct 12, 2026

langsmith-javascript

★2

LangSmith JavaScript SDK.

TypeScript
Updated Oct 15, 2026

homebrew-tap

★1

Homebrew tap for LangChain formulae and casks

Ruby
Updated Oct 14, 2026

langsmith-plugin-binary

★0

Shared build, sign, notarize and publish pipeline for the LangSmith plugin repos

TypeScript
Updated Oct 15, 2026

langsmith-python

★0

Langsmith Python SDK

Python
Updated Oct 15, 2026

Frequently asked questions

What does langchain-ai build on GitHub?

LangChain builds various projects on GitHub, primarily focusing on agent engineering. Their repositories, including langchain and langgraph, contain tools and frameworks for developing resilient and effective agents.

Which programming languages does langchain-ai use?

The primary programming languages used by langchain-ai include Python and TypeScript, along with Jupyter Notebook, Go, and Shell. This diverse language usage supports a wide array of projects and functionalities.

Are langchain-ai's repositories public?

Yes, all repositories under the langchain-ai GitHub account are public. This transparency allows users and developers to access, contribute to, and learn from their extensive collection of projects.

Is this exposure intended?

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