Langchain agents

This is the official companion repository for the book The Complete LangGraph Blueprint: Build 50+ AI Agents for Business Success. The repository provides source code, practical examples, and resources to help you build dynamic AI agents using LangGraph, a cutting-edge graph-based framework for artificial intelligence workflows.

Implementation of an AI Instructor using LLMs and Langchain

Load local LLMs effortlessly in a Jupyter notebook for testing purposes alongside Langchain or other agents. Contains Oobagooga and KoboldAI versions of the langchain notebooks with examples.

A unified interface for various AI model providers

📁 This repository hosts a growing collection of AI blueprint projects that run end-to-end using Jupyter notebooks, MLflow deployments, and Streamlit web apps.🛠️ All projects are built using HP AI Studio with ❤️ If you find this useful, please don’t forget to star the repository ⭐ and support our work 🚀

PDF解析（文字，章节，表格，图片，参考），基于大模型(ChatGLM2-6B, RWKV)+langchain+streamlit的PDF问答，摘要，信息抽取

M-Cube (M³) — Multi-thinking, Multimodal, Multi-verification Patent Drafting Assistant

A ReAct-Based Highly Robust Autonomous Agent (Harness) Framework.

In LangChain for LLM Application Development, you will gain essential skills in expanding the use cases and capabilities of language models in application development using the LangChain framework.

Visualization for a Retrieval-Augmented Generation (RAG) Assistant 🤖❤️📚

ChatGPT for lecture slides

基于 AI 的个人成长轨迹分析系统，通过记录生活、回顾历史、分析模式帮助用户更好地理解自己，实现持续成长。包含智能路由、RAG 检索、自主任务智能体等功能。

Developed an AI application using LLM to analyze user resumes and provided the summarization, strengths, weaknesses, suggestions, suitable job titles, and also scraping job details from LinkedIn using Selenium. This application reduces time by 30% and helps candidates tailor their resumes effectively.

🎬 全自动 AI 视频代理 · 一句话生成带字幕成片 · Fully Automated AI Video Agent · Local Deployment

Self-hostable multimodal chat with local LLMs (Ollama/OpenAI): PDF RAG, image chat, and Whisper voice, Streamlit + Docker.

Explore the must-have external ready-made toolkits to integrate with your AI agents built with Python and TypeScript

Complex question answering in LLMs with enhanced reasoning and information-seeking capabilities.

Open-source protocol suite standardizing LLM, Vector, Graph, and Embedding infrastructure across LangChain, LlamaIndex, AutoGen, CrewAI, Semantic Kernel, and MCP. 3,330+ conformance tests. One protocol. Any framework. Any provider.

Graphsignal Python SDK

A framework for agentic tool use training with reinforcement learning

An adaptive multi-agent system that extracts your literary DNA through conversation and generates actionable reading profiles.

A failure-aware harness for reproducible quantitative-strategy research, with typed agent workflows and inspectable experiment memory.

Serverless AI agent using LangChain.js and Model Context Protocol (MCP) integration to order burgers from a burger restaurant

🟪 Open-source runtime that ships any LangGraph or Google ADK agent as a production-ready FastAPI service. Bundled , AG-UI copilotkit API, chat UI, 15+ guardrails, MCP, OpenTelemetry, OIDC. One pip install. Self-hosted, no vendor lock-in.

Human-like memory for AI agents — semantic, episodic & procedural. Experience-driven procedures that learn from failures. Free API, Python & JS SDKs, LangChain, CrewAI & OpenClaw integrations.

🔥🔥🔥 Enterprise AI middleware, alternative to unifyapps, n8n, lyzr

fullstack chat agent with authentication, request credits and payments built in

Reddit_Commentator_AIHawk is a Python project showcasing the power of artificial intelligence in social media interaction. This tool demonstrates AI's capability to generate contextually relevant Reddit comments using GPT models and LangChain. It automates the process of analyzing trending posts and creating engaging responses.

🤖 DocsMind allows you to chat with your docs and summarize your docs, support pdf, md.

무료로 한국어🇰🇷 파인튜닝 모델 받아서 로컬 LLM 호스팅. LangServe, Ollama, streamlit + RAG

Fiddler Auditor is a tool to evaluate language models.

pdf reader app with note taking, annotations, collaboration, ai features (chat, flashcards generation w. ai-feedbacks), tts and ocr.

A voice-enabled chatbot application built using of 🦜️🔗 LangChain, text-to-speech, and speech-to-text models from 🤗 Hugging Face, and 🍱 BentoML.

A collection of prompts for use with GPT-4 via ChatGPT, OpenAI API w/ Gradio frontend & notebook

Explore LangChain and build powerful chatbots that interact with your own data. Gain insights into document loading, splitting, retrieval, question answering, and more.

非常详细的大模型LLM的学习教程与笔记

Python SDK for interacting with the MCP Toolbox for Databases.

Pure Rust PDF library for AI/RAG: structure-aware chunking, no ML, no C deps.

Code review assistant powered by LLM

LangChain beginner's tutorial for javascript/typescript

An LLM Chatbot that dynamically retrieves and processes resumes using RAG to perform resume screening.

Agentic AI 智能体开发实战

工程化 RAG 文档助手：知识库、PDF 索引、Agent 工具编排、scope 检索、引用溯源与拒答阈值。FastAPI + Vue3

LangChain x gpt4free

Structured Data Extractor for AI Agents. Search your documents or the web for specific data and get it back in JSON or Markdown in a single tool call.

Python, LlamaIndex, LangChain, 15 Property Graph, 4 RDF , 10 Vector, OpenSearch, Elasticsearch, Alfresco, Nuxeo DBs. 14 data sources (10 auto-sync), KG auto-building, Ontologies, LLMs, Docling, LlamaParse, LiteParse, GraphRAG, RAG, Hybrid Search, AI Chat. TypeScript React, Vue, Angular frontends, REST, MCP Server. Options: Langflow, CocoIndex

Using Langchain's ideas to build SpringBoot AI applications | 用langchain的思想，构建SpringBoot AI应用

langchain中文网是langchain的中文文档

⛓ LangChain 入门指南，配套吴恩达老师deeplearning.ai课程 😎复现语言：Python、NodeJs、Golang

Multi-agent autonomous research system using LangGraph and LangChain. Generates citation-backed reports with credibility scoring and web search

An implementation of Google Deep Search with support for 1000+ references, local inference, chatting with your scraping session using RAPTOR, and report generation.

编程导航 2025 年 AI + 全栈新项目，基于 Spring Boot 3 + LangChain4j + Vue 3 构建的程序员技术练兵场平台，检验程序员水平。支持 AI 生成关卡、薪资动态评估、拖拽式答题、个性化学习建议、面试题推荐等核心功能。覆盖 AI Agent、LangChain4j、AI 大模型、MySQL / Redis 存储、MyBatis Plus、Knife4j 接口文档、Markdown 和 Mermaid 图表渲染、工具调用等核心技术。帮程序员提升技术广度和薪资水平，给简历增加竞争力。

Python package that provides (unofficial) API access to the GPT-4 through chat.openai.com. Works with langchain. Supports search DALL-E 3, plugins, continuing generation.

RAG Chatbot with Confluence

A comprehensive list of document parsers, covering PDF-to-text conversion and layout extraction. Each tested for support of tables, equations, handwriting, two-column layouts, and multi-column layouts.

OWASP Foundation web repository

Chat with your data privately using MPT-30b

ChatPDF-GPT is an innovative chat interface application powered by LangChain and OpenAI, allowing users to upload and chat with PDF documents, stored in Pinecone vector database and Supabase storage.

Free courses offer by CampusX

Open-source toolkit for reliable RAG pipelines: convert PDFs to Markdown, clean documents, inspect chunks, compare chunking strategies, and enrich metadata for LLM applications.

Hal9 — Build and Deploy AI Agents

🚀 开源企业级多智能体平台与 ChatBI 数据洞察平台。支持多 Agent 协作、RAG 知识增强、物理数据源直连与安全沙箱执行、Redis 长期记忆引擎，并集成多模态 EmbedChat 挂件与全方位 Token 消耗审计看板，完整 RBAC权限控制和 Harness支持。

An implementation of Google Deep Search 🕵️ with support for 1000+ references, local inference, chatting with your scraping session using RAPTOR, and report generation.

Build AI-powered Agents for Twitter🐣

Your personal AI assistant powered by multiple AI agents. Connects to WhatsApp, Slack, or Telegram to manage your emails, schedule, to-dos, messages, and daily research.

《Easy Data x AI》是一门面向所有 AI 爱好者的数据与 AI 基础入门课程。通过双轨学习路径，从数据驱动视角学习构建 AI Agent。

A generative agent implementation for LLaMA based models, derived from langchain's implementation.

Multi-language agent runtime and library for execution scope management, lifecycle events, and middleware on tool and LLM calls.

This is a code repository initially for Azure OpenAI In a Day workshop. We wanted to share this code with everyone in order to build better AI solutions using Azure OpenAI services. This repository is maintained by community volunteers. If you would like to contribute, please feel free to create a pull request. Thank you all for your contribution.

This repo is deprecated. Please go to langchain-ai/docs.

Python toolkit for Chinese LLMs, with flexible batch capacity, structured real-time visulization and automated accumulation for streaming, and explicit feedback on vendor-native parameter validation.

This repo provides sample generative AI stacks built atop the AWS Generative AI CDK Constructs.

[archived] c4 GenAI Suite

🚀 Autocache - Intelligent Anthropic API Cache Proxy Automatically inject cache-control fields into Claude API requests to reduce costs by up to 90% and latency by up to 85%. Works as a transparent drop-in replacement for popular AI platforms like n8n, Flowise, Make.com, LangChain, and LlamaIndex—no code changes required

GraphRAG / From Local to Global: A Graph RAG Approach to Query-Focused Summarization

Multi-agent LLM system for intelligent replenishment decisions in manufacturing supply chains

GEO（AI 搜索引擎优化）智能内容优化平台 — 帮助品牌在 ChatGPT、Perplexity 等 AI 回答中被优先引用。支持关键词策略、多平台内容生成、E-E-A-T 优化、多模型验证和数据分析。

mcp-use is the framework for MCP with the best DX - Build AI agents, create MCP servers with UI widgets, and debug with built-in inspector. Includes client SDK, server SDK, React hooks, and powerful dev tools.

Knowledge work automation with AI agents

Open Source Text Embedding Models with OpenAI Compatible API

🦙 Free and Open Source Large Language Model (LLM) chatbot web UI and API. Self-hosted, offline capable and easy to setup.

Deep Search Pro —— 一个不到 1000 行的多智能体协作搜索系统。基于 LangChain + FastAPI + WebSocket，主智能体调度 3 个子智能体（网络搜索、数据库查询、知识库检索）协同完成复杂任务。AI Agent 入门学习的最佳实战项目。

Run any Large Language Model behind a unified API

GPT Enhanced with Real-Time Web Browsing 🔗

How to create Question-Answering system combining Langchain and OpenAI

RAG enabled Chatbots using LangChain and Databutton

Automate complex business workflows with our Multi-AI-Agent Systems using crewAI. This framework leverages autonomous, role-specific AI agents to collaboratively perform multi-step tasks, enhancing efficiency and accuracy across various domains. Ideal for applications in resume tailoring, website design, research, customer support, and more.

《LangGraph 实战》配套实验示例代码

A Toolkit for Creating and Deploying LangChain Apps

Self-hosted framework for orchestrating fleets of specialist AI agents — ensemble reasoning and a full agentic coding pipeline, model-agnostic and local-friendly.

Committed to being the best code interpreter in the world.

Multi-agent banking assistant with Java and Langchain4j

AI tool for automating Upwork job applications using AI agents to find and qualify jobs, write personalized cover letters, and prepare for interviews based on your skills and experience.

Deploy intelligence. Open-source infrastructure for AI agents in production.

88篇中文 AI API中转站与工具配置教程：Codex API、Claude Code API、OpenAI-compatible API、Base URL、Cursor、Cherry Studio、计费验证与错误排查。

A scalable RAG platform combining LangGraph agents, hybrid retrieval (Vector+Graph), and Ray orchestration on Kubernetes.

🤗 Would you like to use GPT4 with Plugins but don't want to pay $20/month? This is the solution! With this repository you can have free clone of ChatGPT with plugin

一款免费APaaS零代码平台结合AI应用平台，帮助企业快速搭建个性化业务应用！用户无需任何代码，即可搭建出符合业务需求的个性化应用。敲敲云拥有完善的应用搭建能力、表单引擎、流程引擎、仪表盘引擎，可满足企业的日常需求

Forge is an open-source, self-hosted alternative for visually building and shipping AI agents and workflows without giving up control of your infrastructure.