LangMem
Memory primitives for LangChain agents
● Health 95/100 — Active· commit recency (40 pts) · star momentum (30 pts) · issue ratio (20 pts) · forks (10 pts)App Infrastructure
About
LangChain's official memory SDK. Drop-in tools for long-term semantic memory, episodic recall, and user preference tracking — built to compose with LangGraph and the broader LangChain ecosystem.
Choose LangMem when…
- •You're already on LangGraph / LangChain and want native memory
- •You need semantic + episodic memory without rolling your own
- •You want managed memory backed by LangSmith's storage
Builder Slot
How does your AI remember?Optional for most stacks
Persistent memory layers that give AI agents long-term recall of users, sessions, and context across conversations
Dev Tools
Not applicable
App Infra
Optional
Hybrid
Optional
Stack Genome Detection
AIchitect's Genome scanner detects LangMem in your project via these signals:
npm packages
@langchain/langmempip packages
langmemenv vars
LANGCHAIN_API_KEYPricing
✦ Free tier available
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