LangMem is an open-source project from the LangChain team, hosted on GitHub. It focuses on memory for AI agents, helping them keep useful information across conversations instead of starting fresh each time.
It is a developer library rather than a finished app, so you add it to your own agent code. The project is free and actively maintained, with a sizeable community following. It suits engineers who already work with LangChain tools and want their assistants to learn from past interactions.
