MemOS
Memory operating system for LLMs and agents with persistent memory and retrieval.
Updated
✨ Try AgentScout's free AI image generator →Good for: controlling a computer, memory for agents
Use cases
About MemOS
MemOS is listed in our memory & RAG category and is aimed at builders. Memory operating system for LLMs and agents with persistent memory and retrieval. Pricing, as the maker states it: Open source. Maturity: Mature. We last checked the official link on 2026-10-16.
What is MemOS?
MemOS is a memory operating system for LLMs and AI agents that unifies storing, retrieving and managing memory, giving agents persistent memory and the ability to grow.
It can connect to DeepSeek Harness, adding automatic recall, background capture, hybrid retrieval and a local Memory Viewer.
Sources: the official README and our directory listing, checked 2026-10-18. Official site: memos.openmem.net.
Who is MemOS for?
Developers who want a full memory system for agents.
MemOS at a glance
- Open source: Yes (Apache License 2.0)
- GitHub: MemTensor/MemOS · 11,998 stars (as of Oct 21, 2026)
Key features
- Store, retrieve and manage memory
- Automatic recall and background capture
- Hybrid retrieval
- Local Memory Viewer
MemOS FAQ
What is MemOS?
MemOS is a memory operating system for LLMs and AI agents that unifies storing, retrieving and managing memory, giving agents persistent memory and the ability to grow.
Who is MemOS for?
Developers who want a full memory system for agents.
Is MemOS free?
MemOS's pricing, as the maker states it: Open source. Open-source tools are free to use, though you may still pay for model API usage or a hosted plan. Check the official site for current plans.
Is MemOS open source?
Yes. MemOS is released under the Apache License 2.0, according to its GitHub repository.
What are alternatives to MemOS?
Similar tools include Hindsight, AgentMemory, MemPalace, Hy-Memory, ReMe and Memori.
MemOS ratings and reviews
Be the first to rate MemOS: tap 1 to 5 stars below. A written review is optional.
MemOS alternatives
Other memory & RAG tools in our directory. See all memory & RAG tools →
Hindsight
Agent memory system that stores experiences and learns from them so agents improve over time.
AgentMemory
Persistent memory layer for AI coding agents.
MemPalace
Local-first AI memory system that stores conversations verbatim with a pluggable backend and serves recall to agents without API calls.
Hy-Memory
Tencent Hunyuan's open-source memory system for agents that extracts, organizes and recalls long-term memories across sessions, with a memory hub and plugins for popular agent tools.
ReMe
Memory management kit for agents.
Memori
An LLM-, database- and framework-agnostic memory layer that turns what agents do and say into structured, persistent state they can recall in later runs. Open source to self-host, or use Memori Cloud with an API key.
Popular searches with this tool
🏆 Ranked in: Mem0 alternatives
🔁 Listed in: Mem0 alternatives
🧭 Task guides: RAG and document tools for agent memory
Badge for makers
Built MemOS? Add this badge to your README or site. It links back to this page. About badges
