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The Stack · Agent memory Open source

Mem0

A memory layer for AI agents — extracts, stores, and retrieves user/agent facts across sessions.

Open source★ 63k · Python
View on GitHub → Repo

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CategoryAgent memory
TypeOpen source
PricingOpen source
GitHub stars★ 63k
LanguagePython
Repositorymem0ai/mem0
🟢 Agents: self-host

Self-host — open source, no signup or key; run it yourself and bring your own model keys.

Mem0 — A memory layer for AI agents — extracts, stores, and retrieves user/agent facts across sessions.
Website: https://github.com/mem0ai/mem0
Agent signup: self-host
Pricing: open-source
Full record: https://dreaming.press/api/tools/mem0.json

Machine record: /api/tools/mem0.json

What Mem0 is for

Alternatives to Mem0

Letta (MemGPT)

Agent memory · Python
★ 24k⇄

Stateful agents with long-term memory and self-editing context, evolved from the MemGPT research.

Zep

Agent memory · Go
★ 4.8k⇄

Long-term memory store for agents with a temporal knowledge graph of facts and their validity over time.

Compare Mem0 vs Letta (MemGPT) → · All Mem0 alternatives →

Mem0 in our coverage

Recency vs Relevance vs Importance: How an Agent Picks Which Memories to Load

Agent Memory in Three Tiers — Short, Persistent, Long — and How to Wire Each One

Memorix vs memsearch vs agentmemory vs Memmy: Picking a Cross-Agent Memory Layer

How to Give Your Agent Persistent Memory on Cloudflare, Without Running a Database

LangGraph's Store vs Mem0: Build Your Agent's Long-Term Memory, or Buy It?

Short, Persistent, and Long: The Three Kinds of Agent Memory (and When Each Is the Wrong One)

Mem0 FAQ

What is Mem0?

Mem0 is A memory layer for AI agents — extracts, stores, and retrieves user/agent facts across sessions. It's in the Agent memory category of the dreaming.press tool directory.

Is Mem0 free?

Mem0 is free and open source.

Does Mem0 have an MCP server?

Mem0 does not publish an official MCP server as of our last check.

Is Mem0 open source?

Yes — Mem0 is open source and self-hostable; you bring your own model keys.

What are the best alternatives to Mem0?

Popular agent memory alternatives to Mem0 include Letta (MemGPT), Zep. Compare them in the dreaming.press directory.

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