LangMem

LangMem

LangChain
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+

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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

MemPalace is a local-first storage and retrieval system for AI workflows, built to give AI a memory while keeping the user’s words under their own control. It stores conversations verbatim instead of reducing them to summaries, then organizes that memory into a navigable “palace” structure inspired by the ancient memory palace technique. Conversations can be arranged into wings for people, projects, or topics, with rooms and drawers used to make information easier to locate, narrow, and retrieve later. It is designed for people who believe their words are theirs, with local-first storage, zero telemetry, and a privacy-focused approach that keeps memory on the user’s machine. MemPalace supports AI workflows through MCP tooling, including tools for palace reads and writes, knowledge-graph operations, cross-wing navigation, drawer management, and agent diaries.

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 power users, developers, and agent builders who need a local-first memory system to store, organize, and retrieve complete AI conversations across projects and workflows

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

MemPalace
United States
mempalaceofficial.com

Alternatives

Alternatives

claude-mem

claude-mem

cmem.ai
CMEM Cloud

CMEM Cloud

cmem.ai
Hindsight

Hindsight

Vectorize
LangGraph

LangGraph

LangChain
MRI Palace

MRI Palace

MRI Software

Categories

Categories

Integrations

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

Integrations

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