LangMem

LangMem

LangChain
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About

LangMem is a lightweight, flexible Python SDK from LangChain that equips AI agents with long-term memory capabilities, enabling them to extract, store, update, and retrieve meaningful information from past interactions to become smarter and more personalized over time. It supports three memory types and offers both hot-path tools for real-time memory management and background consolidation for efficient updates beyond active sessions. Through a storage-agnostic core API, LangMem integrates seamlessly with any backend and offers native compatibility with LangGraph’s long-term memory store, while also allowing type-safe memory consolidation using schemas defined in Pydantic. Developers can incorporate memory tools into agents using simple primitives to enable seamless memory creation, retrieval, and prompt optimization within conversational flows.

About

OpenViking is an open source context database designed specifically for AI agents, built around a file-system paradigm that unifies the management of memories, resources, and skills. Instead of treating context as scattered chunks in a fragmented vector store, OpenViking organizes agent context into a virtual file system under the viking protocol, giving agents a structured way to store, navigate, retrieve, and observe the information they need. It is designed to help developers move beyond the hassle of manual context management by giving agents a minimalist interaction model for context, similar to reading and writing files. OpenViking supports hierarchical context loading, semantic retrieval, recursive retrieval, sessions, metrics, and observability, making it possible for AI agents to access the right level of information without stuffing everything into the prompt.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

AI developers and data scientists who build LangChain-based agents and want to implement long-term, structured memory to enhance personalization, coherence, and conversational depth

Audience

AI agent developers and infrastructure teams who need an open-source context database to organize memory, resources, skills, and retrieval flows through a structured file-system model

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

No information available.
Free Version
Free Trial

Pricing

Free
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

LangChain
Founded: 2022
United States
langchain-ai.github.io/langmem/

Company Information

OpenViking
Founded: 2026
United States
openviking.ai/

Alternatives

Alternatives

claude-mem

claude-mem

cmem.ai
CMEM Cloud

CMEM Cloud

cmem.ai
Hindsight

Hindsight

Vectorize
LangGraph

LangGraph

LangChain
Papr

Papr

Papr.ai
Acontext

Acontext

MemoDB

Categories

Categories

Integrations

Aider
Claude
Claude Code
Claude Desktop
Codex CLI
Cursor
Gemini CLI
GitHub Copilot CLI
Google Antigravity
Hermes Agent
Kimi Code
Kiro
LangGraph
Model Context Protocol (MCP)
OpenAI Codex
OpenClaw
OpenCode
Pi Agent
Python
TRAE

Integrations

Aider
Claude
Claude Code
Claude Desktop
Codex CLI
Cursor
Gemini CLI
GitHub Copilot CLI
Google Antigravity
Hermes Agent
Kimi Code
Kiro
LangGraph
Model Context Protocol (MCP)
OpenAI Codex
OpenClaw
OpenCode
Pi Agent
Python
TRAE
Claim LangMem and update features and information
Claim LangMem and update features and information
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Claim OpenViking and update features and information