CrewAI
Framework for orchestrating role-playing, autonomous AI agents. By fostering collaborative intelligence, CrewAI empowers agents to work…
Langchain es un proyecto de agentes de IA de código abierto de langchain-ai (langchain-ai/langchain en GitHub). Tiene 147.409 estrellas en GitHub y 24.692 bifurcaciones, se publica bajo la licencia MIT y se actualizó por última vez en GitHub el 3 de octubre de 2026.
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.
Los demás proyectos de Agentes de IA con más estrellas del catálogo de LibreAI: la lista realista de alternativas si Langchain no es lo que buscas.
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Proyectos de Agentes de IA cercanos en el catálogo, los más próximos en estrellas a Langchain: sigue explorando a ambos lados.
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Gratis y abierto: consigue el código fuente, dale una estrella al repositorio y empieza a crear.