Discover the best projects built with LangChain

A production-grade, agentic RAG platform for portfolio intelligence, combining LangChain, Chroma/FAISS, Hugging Face embeddings, and Ollama with dynamic entity extraction, backend API tool-chaining, and a real-time interactive assistant across deploy-ready frontend, backend, and infrastructure stacks. Maintained by hoangsonww on GitHub, where it has earned 48 stars from the community.

Ubiquité: Open-source Perplexity clone with multi-LLM support and KaTeX math rendering. Maintained by edoigtrd on GitHub, where it has earned 48 stars from the community.

An example SvelteKit project using sveltekit-modal, with a Python server endpoint written in langchain. Maintained by semicognitive on GitHub, where it has earned 48 stars from the community.

Using LangChain's SQL Database Chain and Agent with various LLMs to perform Natural Language Queries (NLQ) of an Amazon RDS for PostgreSQL database. Maintained by garystafford on GitHub, where it has earned 48 stars from the community.

Telegram bot that answers questions over your PDFs using retrieval-augmented generation (LangChain + FAISS). Maintained by Leon-Sander on GitHub, where it has earned 48 stars from the community.

A comprehensive platform for managing, testing, and leveraging Ollama AI models with advanced features for customization, workflow automation, and collaborative development. Maintained by marc-shade on GitHub, where it has earned 48 stars from the community.

Agentic AI framework built using LangGraph and Multi-Agent Control Plane (MCP) for building structured, goal-driven multi-agent systems. Maintained by mohd-faizy on GitHub, where it has earned 48 stars from the community.

RAG app for patent similarity search with chatgpt llm over google patents. Maintained by us on GitHub, where it has earned 48 stars from the community.

Adaptive Reasoning Engine for Efficient and Context-Aware Intelligence. Maintained by CaviraOSS on GitHub, where it has earned 48 stars from the community.

Implementation of 12 AI agents evaluation techniques. Maintained by FareedKhan-dev on GitHub, where it has earned 47 stars from the community.

Utilizing a LINE Bot integrated with LangChain in Python to assist with stock price inquiries. Maintained by kkdai on GitHub, where it has earned 47 stars from the community.

Kronos Agent OS (KAOS): self-hosted runtime for durable AI agents with memory, skills, MCP tools, automations, dashboard, and optional swarm coordination. Maintained by spyrae on GitHub, where it has earned 47 stars from the community.

Teach ChatGPT the Alda music programming language, show it some superb code, and consult with it to compose a melody. Maintained by mazzzystar on GitHub, where it has earned 47 stars from the community.

A modular and AI-powered appointment booking agent designed to streamline scheduling for businesses, starting with dental clinics. Built with LangGraph, Composio, and Bland.com, it integrates Google Calendar and Gmail to manage appointments, send confirmations, and handle voice interactions. Maintained by mjunaidca on GitHub, where it has earned 47 stars from the community.

Concepts and examples on using and training LLMs. Maintained by danielsobrado on GitHub, where it has earned 47 stars from the community.

Designed for offline use, this RAG application template offers a starting point for building your own local RAG pipeline, independent of online APIs and cloud-based LLM services like OpenAI. Maintained by tyrell on GitHub, where it has earned 47 stars from the community.

A comprehensive collection of Generative AI projects and experiments, covering RAG, chatbots, LLM fine-tuning, and more. Maintained by Suraj-G-Rao on GitHub, where it has earned 47 stars from the community.

A radically simple, reliable, and high performance template to enable you to quickly get set up building multi-agent applications. Maintained by The-Swarm-Corporation on GitHub, where it has earned 47 stars from the community.

A Retrieval Augmented Generation (RAG) system using LangChain, Ollama, Chroma DB and Gemma 7B model. Maintained by deeepsig on GitHub, where it has earned 47 stars from the community.

Meet Lumina – my personal AI assistant powered by hybrid RAG with Pinecone vector search and Neo4j graph traversal, Google AI, LangChain, and an MCP server with 30+ tools. Features real-time streaming, conversation branching, and a multi-agent agentic AI pipeline for intelligent, grounded responses with inline citations. Maintained by hoangsonww on GitHub, where it has earned 47 stars from the community.

Enterprise AI Agent Orchestration Platform — Secure, Observable, Configurable. Multi-agent teams with IAM policies, n8n workflows, LangChain memory, LangSmith traces, NemoClaw security, OpenTelemetry, and 20+ LLM providers. Maintained by CES-Ltd on GitHub, where it has earned 46 stars from the community.

Ship Agent2Agent in one line of code. Maintained by the-artinet-project on GitHub, where it has earned 46 stars from the community.

This repository features three demos that can be effortlessly integrated into your AWS environment. They serve as a practical guide to leveraging AWS services for crafting a sophisticated Large Language Model (LLM) Generative AI, geared towards creating a responsive Question and Answer Bot and localizing content generation. Maintained by aws-samples on GitHub, where it has earned 46 stars from the community.

OpenAIChat. Maintained by yuruotong1 on GitHub, where it has earned 46 stars from the community.

The OS AI engineering and monitoring agent. Oversight and compliance copilot for trustworthy AI. Maintained by ContrastoAI on GitHub, where it has earned 46 stars from the community.

Improving langchain knowledge graphs using baml. Maintained by FareedKhan-dev on GitHub, where it has earned 46 stars from the community.

AI controller that controls your robot. Maintained by kalashjain23 on GitHub, where it has earned 46 stars from the community.

langchaingoollamarag. Maintained by eryajf on GitHub, where it has earned 46 stars from the community.

Multimodal Chat with Gemini API. Maintained by elizabethsiegle on GitHub, where it has earned 46 stars from the community.

LangChain interface to LiteLLM. Maintained by langchain-ai on GitHub, where it has earned 46 stars from the community.

Chat to PDFs. Maintained by viniciusarruda on GitHub, where it has earned 46 stars from the community.

A Streamlit-based chat app for LLMs with plug-and-play tool support via Model Context Protocol (MCP), powered by LangChain, LangGraph, and Docker. Maintained by Elkhn on GitHub, where it has earned 46 stars from the community.

Layered guardrails to make agentic AI safer and more reliable. Maintained by FareedKhan-dev on GitHub, where it has earned 46 stars from the community.

This repository contains the source code for an autonomous multi-agent system built with CrewAI and LangChain. The project enables AI agents to collaborate on tasks such as researching, writing, and editing essays. Maintained by mesutdmn on GitHub, where it has earned 45 stars from the community.

Qurio brings multi-provider models, custom agents, reusable skills, MCP servers, HTTP tools, retrieval, long-term memory, Deep Research, and Scrapbook into one operating surface. Maintained by havingautism on GitHub, where it has earned 45 stars from the community.

I recently attended the Geekbang "Large Language Models Application Development Practice Camp", where I learned about the application development of Large Language Models. Below is a summary of the after-class exercises that I participated in the camp. Maintained by ShengqinYang on GitHub, where it has earned 45 stars from the community.

Automate web research way beyond the first page of search results; curate knowledge bases to chat with. Maintained by reasonmethis on GitHub, where it has earned 45 stars from the community.

A batteries-included monorepo framework for building sophisticated LangGraph applications. Maintained by webup on GitHub, where it has earned 45 stars from the community.

docker setup to run the LangChain research-assistant template using langserve. Maintained by joshuasundance-swca on GitHub, where it has earned 45 stars from the community.

AI-powered multi-agent medical assistant with a deterministic safety layer — crisis detection, refused-topic hard-stops, dosage grounding, and post-generation diagnosis verification running before and after every LLM call, backed by parallel RAG, Wikipedia, and Tavily retrieval with symptom and drug-question routing. Maintained by Md-Emon-Hasan on GitHub, where it has earned 45 stars from the community.

Telegram bot wrapping TradingAgents — chat-driven watchlist with parallel multi-ticker analysis, cancellation, and Telegraph reports. Maintained by IvanWng97 on GitHub, where it has earned 45 stars from the community.

Convert Confluence MIME exports (.doc) to clean Markdown. Maintained by aqueeb on GitHub, where it has earned 45 stars from the community.

The Financial Research Analyst Agent is a hierarchical multi-agent system that provides comprehensive stock analysis by coordinating 11 specialized AI agents, 20+ analysis tools, a RAG knowledge pipeline, and a multi-provider data layer — all accessible through a Streamlit web app, REST API, and CLI. Maintained by gsaini on GitHub, where it has earned 45 stars from the community.

Easy to use LLM Prompt Injection Detection and Prompt Input Sanitization / Detector Python Package with support for local models, API-based safeguards, safeguard for tool calls, and LangChain guardrails. Maintained by MaxMLang on GitHub, where it has earned 45 stars from the community.

Efficient AI English Learning: Read & Speak via Web | ，， AI ， Web. Maintained by vancece on GitHub, where it has earned 45 stars from the community.

Open Studio is an open-source AI ecosystem powering research and automation with specialized agents like ChatHub for AI conversations and OpenStudio Tube for YouTube creators. More niche AI tools on the way—powerful, open, and built for impact!. Maintained by kuluruvineeth on GitHub, where it has earned 44 stars from the community.

Elixir-native LangChain, LangGraph, and DeepAgents for traceable LLM apps: OTP workflows, tools, memory, human-in-the-loop, streaming, custom clients/adapters, minimal deps, and WeaveScope tracing. Maintained by caudena on GitHub, where it has earned 44 stars from the community.

LangGraph Typescript Agents Notebooks: email, human in the loop, memory. Maintained by langchain-ai on GitHub, where it has earned 44 stars from the community.

Langchain Agent utilizing OpenAI Function Calls to execute Git commands using Natural Language. Maintained by jupyterjazz on GitHub, where it has earned 44 stars from the community.

⭐ College.ai is an advanced AI-powered platform that provide a set of tools for students, job seekers, and professionals. Maintained by SurajSanap on GitHub, where it has earned 44 stars from the community.

Streamlit + Langchain + LlamaCPP + Mistral + Rag. Maintained by lalanikarim on GitHub, where it has earned 44 stars from the community.

Clone of writesonic.com & copy.ai - BlogIQ is an innovative app powered by OpenAI and Langchain, designed to streamline the content creation process for bloggers. Maintained by BlueBash on GitHub, where it has earned 44 stars from the community.

LangChain agent usable tool to screen stock data. Maintained by jbpayton on GitHub, where it has earned 44 stars from the community.

An innovative AI conversation API leveraging Google's Gemini for multimodal understanding. Combines FastAPI, Langchain, and Redis for robust, scalable, and privacy-conscious text and image-based interactions. Maintained by shamspias on GitHub, where it has earned 44 stars from the community.

A Portfolio Website with an AI chatbot that can answer any question about you. Maintained by medevs on GitHub, where it has earned 44 stars from the community.

Metad® Open Platform for Enterprise Data Analysis, Indicator Management and Reporting. Maintained by meta-d on GitHub, where it has earned 44 stars from the community.

A framework for hosting and scaling AI agents. Maintained by PropsAI on GitHub, where it has earned 43 stars from the community.

Building an AWS Solution Architect Agent with Generative AI. Maintained by build-on-aws on GitHub, where it has earned 43 stars from the community.

Langchain examples, mainly Google Colab notebooks, but could be others. Maintained by leegonzales on GitHub, where it has earned 43 stars from the community.

The first Open-Souce RAG-LLM tool to analyse macroeconomic data and forecasts. Maintained by viczommers on GitHub, where it has earned 43 stars from the community.