// agents · langchain-ai/langmem

langmem

langmem es un proyecto de agentes de IA de código abierto de langchain-ai (langchain-ai/langmem en GitHub). Tiene 1.698 estrellas en GitHub y 194 bifurcaciones, se publica bajo la licencia MIT y se actualizó por última vez en GitHub el 2 de octubre de 2026.

LangMem: long-term memory primitives for LangGraph agents that learn and adapt from conversations.

★ 1,7k estrellas⑂ 194 bifurcacionesMITactualizado oct 2026
▦ visual: el README de este proyecto no incluye ninguna captura incrustable,
así que aquí va un marcador. La guía de abajo está completa de todos modos.
// datos del proyecto

Datos del proyecto

Estrellas en GitHub
1.698
Bifurcaciones
194
Licencia
MIT
Última actualización en GitHub
2 de octubre de 2026
Categoría
Agentes de IA
Tipo de ficha
Guía de instalación completa
Sitio oficial
Official site
// cómo funciona

Cómo funciona

  1. Clarify your goal

    Decide your memory strategy: agents managing memory in the hot path during conversation, a background manager that consolidates knowledge, or both.

  2. Get the project

    Install LangMem from PyPI and configure an API key for your LLM provider.

  3. Install and configure

    Create a store (in-memory for development, database-backed for production) and give your agent the memory management and search tools with a namespace.

  4. Run your first task

    Chat with the agent normally; it records and retrieves memories itself, and you can verify recall by asking about earlier preferences.

// características

Por qué gusta tanto

Core memory API

Storage-agnostic primitives for extracting, consolidating, and updating knowledge from conversations, usable with any storage system.

Hot-path memory tools

Ready-made manage and search memory tools let an agent record and look up information during active conversations, under your control of what gets stored.

Background memory manager

Automatically extracts, consolidates, and updates agent knowledge outside the conversation flow.

Native LangGraph integration

Works directly with LangGraph's Long-term Memory Store, which is available by default in LangGraph Platform deployments.

Prompt refinement

Beyond facts, LangMem can optimise agent behaviour through prompt updates informed by past interactions.

Production store options

Swap the development in-memory store for a persistent Postgres-backed store so memories survive restarts.

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// ejecútalo

Ejecútalo tú mismo

  1. Clone the project (optional)

    Most developers simply pip install the library.

    git clone https://github.com/langchain-ai/langmem.git
    cd langmem
  2. Install and configure a provider key

    Install LangMem and export the key for the LLM provider your agent will use.

    pip install -U langmem
    export ANTHROPIC_API_KEY=<your key>
  3. Create an agent with memory tools

    Wire the manage and search memory tools into a LangGraph agent with a store, following the README example. # see README for the full code snippet

    python -c "from langmem import create_manage_memory_tool, create_search_memory_tool; print('tools ready')"
// casos de uso

Qué puedes crear

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// preguntas frecuentes

Preguntas frecuentes

Who maintains it?

It is maintained by LangChain (langchain-ai), the team behind LangGraph.

Is it free to use?

Yes, LangMem is MIT-licensed and free. You pay your LLM provider for the model calls the agent and memory manager make.

Does it need a paid API key?

Yes, you configure an API key for your chosen LLM provider (the README example uses Anthropic), and embeddings for the store use a configured embedding model.

How does it compare to a well-known alternative?

Vector databases store and retrieve text; LangMem adds the agent-facing layer: tools for in-conversation memory management, background consolidation, and prompt optimisation, integrated with LangGraph.

How do I get started?

Run pip install -U langmem, set your provider key, and follow the README's short example to build an agent with the two memory tools.

// sigue explorando

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// alternativas

Alternativas en Agentes de IA

Los demás proyectos de Agentes de IA con más estrellas del catálogo de LibreAI: la lista realista de alternativas si langmem no es lo que buscas.

// más en agents

Más en Agentes de IA

Proyectos de Agentes de IA cercanos en el catálogo, los más próximos en estrellas a langmem: sigue explorando a ambos lados.

Consigue langmem

Gratis y abierto: consigue el código fuente, dale una estrella al repositorio y empieza a crear.