AIエージェント
CrewAI
Framework for orchestrating role-playing, autonomous AI agents. By fostering collaborative intelligence, CrewAI empowers agents to work…
★ 59.3k スターMIT
ガイドを見る →Langchainは、langchain-aiが公開しているオープンソースのAIエージェントプロジェクトです（GitHub: langchain-ai/langchain）。GitHubスターは147,409、フォークは24,692で、MITライセンスの下で公開されています。GitHubでの最終更新は2026年10月3日です。
The agent engineering platform
Application frameworks, agent runtimes, or voice stacks — choose by whether you are building apps, automations, or realtime voice.
Python or TypeScript packages install with one command; most include quickstart templates.
Give the agent functions it can call and a memory layer so it stays coherent across sessions.
Launch the agent, watch its tool calls and reasoning traces, and iterate on prompts and tools.
Agents act on the world: APIs, databases, browsers, and shell commands.
Crews and graphs of specialized agents collaborating on complex tasks.
Short and long-term memory so agents improve across sessions.
Traces of every decision and tool call — essential for debugging.
Low-latency stacks for conversational voice agents.
Swap underlying LLMs without rewriting your agent logic.
Download the source and move into the project folder.
git clone https://github.com/langchain-ai/langchain.git
cd langchainIsolate dependencies so nothing clashes with your other projects.
python -m venv .venv
source .venv/bin/activate # Windows: .venv\Scripts\activateInstall the requirements, then follow the README's launch command (it varies per project).
pip install -r requirements.txtThe AI Agents shelf also holds OpenScience — the open-source AI workbench for scientific research: give it a goal, it reads the literature, runs the experiments and writes up the findings. Readers working through the AI Agents shelf also stop at forkd, Fork() for AI agent microVMs — spawn 100 KVM-isolated children in ~100ms from a warm parent. Also on this shelf: xerj — AI-native search that indexes code, docs, and PDFs with 40x fewer tokens than grep.
Frameworks build your own; some repos here ship ready-made agents you can run directly.
Tool-calling quality matters more than raw size — strong mid-size models work well.
It is an open-source project at langchain-ai/langchain with 24,692 forks. Check the repo's contributors and recent commits to see how active maintenance is.
Sandbox tool access, confirm destructive actions, and review traces — treat agents like junior employees with supervision.
Self-hosted frameworks are free; you pay only for model inference (local or API).
A quickstart template in the framework's docs — most get a first agent running in minutes.
Framework for orchestrating role-playing, autonomous AI agents. By fostering collaborative intelligence, CrewAI empowers agents to work…
A programming framework for agentic AI
LlamaIndex is the document processing platform for AI
The JavaScript/TypeScript version of LangChain - the agent engineering platform
AI Agent Engineering Platform built on an Open Source TypeScript AI Agent Framework
The batteries-included agent harness from the LangChain team.
LibreAIカタログに掲載されたAIエージェントプロジェクトの中で最もスターの多いもの — Langchainが合わなかった場合に検討したい、現実的な候補リストです。
A personal AI that really does things — on any OS, with your data staying yours.
An agentic skills framework & software development methodology that works.
Agent harness optimization system with skills, memory and security for Claude Code, Codex and more
The agent that grows with you — a Python framework for adaptive AI agents.
DeepSeek's plugin-based agent harness where everything is a plugin.
カタログの中でLangchainとスター数が近いAIエージェントプロジェクト — 前後の棚もそのまま見て回れます。
Skills and plugins that teach coding agents to write less, better code.
FULL Augment Code, Claude Code, Cluely, CodeBuddy, Comet, Cursor, Devin AI, Junie, Kiro, Leap.new, Lovable, Manus, NotionAI, Orchids.app, Perplexity, Poke, Q…
f.k.a. Awesome ChatGPT Prompts. Share, discover, and collect prompts from the community. Free and open source — self-host for your organization with complete…
100+ AI Agents, Agent Skills and RAG Apps - Free and Open Source.
The open-source platform for building and running autonomous AI agents, hosted or self-hosted
The open-source library that lets AI agents control a real browser.