agentskillexchange Add managed long-term memory to LangGraph agents with LangMem
Give LangGraph agents memory management and search tools so they can store, retrieve, and update durable facts across sessions.
Prerequisites
Python, langmem, LangGraph or LangChain agent runtime, persistent store such as Postgres for production, LLM provider API key
Installation
Use the upstream install or setup path that matches your environment:
- pip install -U langmem
Requirements and caveats from upstream:
- python
Basic usage or getting-started notes:
Configure your environment with an API key for your favorite LLM provider:
export ANTHROPIC_API_KEY="sk-..." # Or another supported LLM provider
Here's how to create an agent that actively manages its own long-term memory in just a few lines:
Extracted from upstream docs: https://raw.githubusercontent.com/langchain-ai/langmem/HEAD/README.md