| langchain-ai/langchainjs | 🦜🔗 Build context-aware reasoning applications | 17,063 | TypeScript |
| langchain-ai/open_deep_research | — | 10,669 | Python |
| langchain-ai/local-deep-researcher | Fully local web research and report writing assistant | 8,525 | Python |
| langchain-ai/rag-from-scratch | — | 7,482 | Jupyter Notebook |
| langchain-ai/opengpts | — | 6,753 | Rich Text Format |
| langchain-ai/chat-langchain | — | 6,255 | Python |
| langchain-ai/open-canvas | 📃 A better UX for chat, writing content, and coding with LLMs. | 5,385 | TypeScript |
| langchain-ai/open-swe | An Open-Source Asynchronous Coding Agent | 5,272 | TypeScript |
| langchain-ai/langchain-mcp-adapters | LangChain 🔌 MCP | 3,391 | Python |
| langchain-ai/langgraphjs | Framework to build resilient language agents as graphs. | 2,585 | TypeScript |
| langchain-ai/agent-chat-ui | 🦜💬 Web app for interacting with any LangGraph agent (PY & TS) via a chat interface. | 2,515 | TypeScript |
| langchain-ai/langchain-academy | — | 2,450 | Jupyter Notebook |
| langchain-ai/langchain-nextjs-template | LangChain + Next.js starter template | 2,395 | TypeScript |
| langchain-ai/social-media-agent | 📲 An agent for sourcing, curating, and scheduling social media posts with human-in-the-loop. | 2,312 | TypeScript |
| langchain-ai/langserve | LangServe 🦜️🏓 | 2,277 | JavaScript |
| langchain-ai/executive-ai-assistant | — | 2,176 | Python |
| langchain-ai/open-agent-platform | An open-source, no-code agent building platform. | 1,853 | TypeScript |
| langchain-ai/streamlit-agent | Reference implementations of several LangChain agents as Streamlit apps | 1,630 | Python |
| langchain-ai/agents-from-scratch | Build an email assistant with human-in-the-loop and memory | 1,513 | Jupyter Notebook |
| langchain-ai/langgraph-supervisor-py | — | 1,500 | Python |
| langchain-ai/deep-agents-ui | Custom UI for Deep Agents | 1,411 | TypeScript |
| langchain-ai/langgraph-swarm-py | For your multi-agent needs | 1,396 | Python |
| langchain-ai/openwork | — | 1,312 | TypeScript |
| langchain-ai/langmem | — | 1,310 | Python |
| langchain-ai/langchain-extract | 🦜⛏️ Did you say you like data? | 1,189 | Rich Text Format |
| langchain-ai/langsmith-cookbook | — | 1,010 | Jupyter Notebook |
| langchain-ai/mcpdoc | Expose llms-txt to IDEs for development | 934 | Python |
| langchain-ai/agent-inbox | 📥 An inbox UX for interacting with human-in-the-loop agents. | 932 | TypeScript |
| langchain-ai/openevals | Readymade evaluators for your LLM apps | 915 | Python |
| langchain-ai/auto-evaluator | — | 781 | TypeScript |
| langchain-ai/deepagentsjs | Deep Agents in JS | 741 | TypeScript |
| langchain-ai/langgraph-codeact | — | 719 | Python |
| langchain-ai/deep_research_from_scratch | — | 678 | Jupyter Notebook |
| langchain-ai/react-agent | LangGraph template for a simple ReAct agent | 668 | Python |
| langchain-ai/deep-agents-from-scratch | — | 589 | Jupyter Notebook |
| langchain-ai/multi-modal-researcher | — | 587 | Python |
| langchain-ai/weblangchain | LangChain-powered web researcher chatbot. Searches for sources on the web and cites them in generated answers. | 555 | TypeScript |
| langchain-ai/agent-protocol | — | 525 | Python |
| langchain-ai/how_to_fix_your_context | — | 520 | Jupyter Notebook |
| langchain-ai/langgraph-bigtool | Build LangGraph agents with large numbers of tools | 517 | Python |
| langchain-ai/langchain-aiplugin | — | 506 | Python |
| langchain-ai/agentevals | Readymade evaluators for agent trajectories | 486 | Python |
| langchain-ai/langgraph-example | — | 478 | Python |
| langchain-ai/deepagents-quickstarts | REPO MOVED | 466 | Jupyter Notebook |
| langchain-ai/react-voice-agent | — | 431 | HTML |
| langchain-ai/memory-agent | — | 414 | Python |
| langchain-ai/langgraphjs-gen-ui-examples | A collection of generative UI agents written with LangGraph.js | 389 | TypeScript |
| langchain-ai/web-explorer | — | 389 | Python |
| langchain-ai/langconnect | A managed RAG API server. | 337 | Python |
| langchain-ai/langgraph-101 | Learn about the fundamentals of LangGraph through a series of notebooks | 326 | Jupyter Notebook |
| langchain-ai/lca-lc-foundations | — | 320 | TypeScript |
| langchain-ai/rag-research-agent-template | — | 291 | Python |
| langchain-ai/learning-langchain | — | 285 | Python |
| langchain-ai/langchain-teacher | Teach LangChain using LangChain! | 273 | Python |
| langchain-ai/langchain-postgres | LangChain abstractions backed by Postgres Backend | 270 | Python |
| langchain-ai/text-split-explorer | — | 270 | Python |
| langchain-ai/langchain-benchmarks | 🦜💯 Flex those feathers! | 255 | Python |
| langchain-ai/docs | 🦜🔗 Docs for LangChain projects | 252 | MDX |
| langchain-ai/langchainjs-mcp-adapters | ** THIS REPO HAS MOVED TO https://github.com/langchain-ai/langchainjs/tree/main/libs/langchain-mcp-adapters ** Adapters for integrating Model Context Protocol (MCP) tools with LangChain.js applications, supporting both stdio and SSE transports. | 246 | TypeScript |
| langchain-ai/langchain-sandbox | Safely run untrusted Python code using Pyodide and Deno | 235 | Python |
| langchain-ai/new-langgraph-project | — | 234 | Python |
| langchain-ai/langgraph-builder | — | 233 | TypeScript |
| langchain-ai/memory-template | — | 231 | Python |
| langchain-ai/langchain-community | Community-maintained LangChain integrations | 228 | Python |
| langchain-ai/data-enrichment | LangGraph Studio template for creating an agent that does web research to genearte or enrich structured data. | 223 | Jupyter Notebook |
| langchain-ai/company-researcher | — | 213 | Python |
| langchain-ai/llmanager | 🧍♂️LLM as a manager for approval processes. | 212 | TypeScript |
| langchain-ai/langgraph-cua-py | An implementation of a computer use agent (CUA) using LangGraph | 199 | Python |
| langchain-ai/agent-auth-payments | fullstack chat agent with authentication, request credits and payments built in | 189 | TypeScript |
| langchain-ai/langchain-nvidia | — | 189 | Jupyter Notebook |
| langchain-ai/create-agent-chat-app | The quickest way to get started building a LangGraph app | 178 | TypeScript |
| langchain-ai/langgraph-reflection | — | 171 | Python |
| langchain-ai/context_engineering | — | 170 | Jupyter Notebook |
| langchain-ai/task_mAIstro | — | 164 | Jupyter Notebook |
| langchain-ai/langsmith-docs | This repo is deprecated. Please go to langchain-ai/docs. | 163 | JavaScript |
| langchain-ai/people-researcher | — | 154 | Python |
| langchain-ai/retrieval-agent-template | — | 152 | Python |
| langchain-ai/lang-memgpt | A bot with memory, built on LangGraph Cloud. | 152 | Python |
| langchain-ai/story-writing | — | 151 | Python |
| langchain-ai/robo-blogger | Assistant for voice-to-blog writing | 148 | Python |
| langchain-ai/intro-to-langsmith | Resources for the LangSmith Academy Course | 148 | Jupyter Notebook |
| langchain-ai/langgraph-fullstack-python | — | 143 | Python |
| langchain-ai/langsmith-fetch | CLI for fetching LangSmith data | 116 | Python |
| langchain-ai/langchain-azure | Build secure LangChain applications on Azure | 115 | Jupyter Notebook |
| langchain-ai/voice-sandwich-demo | — | 111 | TypeScript |
| langchain-ai/langgraph-gen-py | CLI to generate LangGraph stubs from a specification | 104 | Python |
| langchain-ai/react-agent-js | — | 104 | TypeScript |
| langchain-ai/langchain-mongodb | Integrations between MongoDB, Atlas, LangChain, and LangGraph | 100 | Python |
| langchain-ai/langchain-experimental | — | 96 | Python |
| langchain-ai/kork | Natural Language Interfaces Powered by LLMs | 95 | Python |
| langchain-ai/reply_gAI | An AI Clone For Any X Profile | 93 | Jupyter Notebook |
| langchain-ai/langsmith-mcp-server | — | 86 | Python |
| langchain-ai/helm | Repository hosting Langchain helm charts. | 82 | Shell |
| langchain-ai/langchain-elastic | Elasticsearch integration into LangChain | 75 | Python |