SimpleMem
Research-backed lifelong memory library for LLM agents that stores, compresses and retrieves text and multimodal memories, usable over MCP.
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About SimpleMem
SimpleMem is listed in our memory & RAG category and is aimed at builders. Research-backed lifelong memory library for LLM agents that stores, compresses and retrieves text and multimodal memories, usable over MCP. Pricing, as the maker states it: Open source. Maturity: Active. We last checked the official link on 2026-10-18.
SimpleMem at a glance
- Category: Memory & RAG
- Built for: Developers and teams building with AI agents
- Pricing: Open source (as the maker states it)
- Licence: MIT License (OSI-approved open source)
- GitHub: aiming-lab/SimpleMem · 3,842 stars (as of Oct 21, 2026)
- Latest release: v0.3.0 — Unified SimpleMem package, May 21, 2026
- Last commit: Jul 24, 2026
- Official site: github.com/aiming-lab/SimpleMem
- Listed on AgentScout: Oct 18, 2026
SimpleMem FAQ
What is SimpleMem?
Research-backed lifelong memory library for LLM agents that stores, compresses and retrieves text and multimodal memories, usable over MCP.
How much does SimpleMem cost?
SimpleMem'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 SimpleMem open source?
Yes. SimpleMem's GitHub repository is published under the MIT License, according to the licence file in the repo.
Where can I find SimpleMem's source code?
On GitHub at aiming-lab/SimpleMem, which had 3,842 stars as of Oct 21, 2026. The latest release is v0.3.0 — Unified SimpleMem package (May 21, 2026).
What are alternatives to SimpleMem?
Similar tools include Hindsight, Activeloop, Honcho, Qdrant MCP Server, Headroom and Mem0.
Facts from our link-checked listing, the GitHub repository and the official site. See something wrong? Suggest an edit.
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SimpleMem 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.
Activeloop
Deep Lake, a multimodal database for AI that stores vectors, images, text and video so agents and RAG apps can search and retrieve them.
Honcho
Memory library and service for building stateful agents that remember users.
Qdrant MCP Server
Official Qdrant MCP server that lets agents store and retrieve memories and documents in the Qdrant vector database.
Headroom
Library, proxy and MCP server that compresses tool outputs, logs, files and RAG chunks locally before they reach the LLM, cutting tokens for coding agents.
Mem0
Mem0 is an open-source memory layer for AI agents that extracts facts from conversations in a single add-only pass, links entities across memories and retrieves them in later sessions, with an Apache-2.0 SDK and a managed platform.
Related lists
🏆 Ranked in: Mem0 alternatives · Headroom alternatives
🔁 Listed in: Headroom alternatives · Mem0 alternatives
🧭 Task guides: Memory tools for building AI agents · RAG and document tools for agent memory · RAG and document tools for research agents
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