Library / SDK
Retrieval & MemoryAgents & Orchestration
LangMem
1Add 2long-term 3memory 4to 5your 6agents.
the six Ws · specification
W1
Who
By LangChain.
W2
What
Extracts, stores, and retrieves durable memories for LangGraph agents.
W3
Where
A Python library in your agent.
W4
When
When agents must remember across sessions.
W5
Why
Gives agents lasting, useful memory.
W6
With
Python and LangGraph.
W7
Watch
MIT, from LangChain; runs locally, stores memory in your backend.
LangChainMemoryAgents