MemPalace
Local-first AI memory system that stores conversations verbatim with a pluggable backend and serves recall to agents without API calls.
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Use cases
About MemPalace
MemPalace is listed in our memory & RAG category and is aimed at builders. Local-first AI memory system that stores conversations verbatim with a pluggable backend and serves recall to agents without API calls. Pricing, as the maker states it: Open source. Maturity: Mature. We last checked the official link on 2026-10-18.
What is MemPalace?
MemPalace is a local-first memory system for AI agents. It stores your conversation history as verbatim text and retrieves it with semantic search, without summarizing or paraphrasing it.
Its index is structured so searches can be scoped (people and projects become wings, topics become rooms), and the retrieval backend is pluggable, with ChromaDB as the default. Nothing leaves your machine unless you opt in. Its README warns that the only official sources are the GitHub repo, the PyPI package and mempalaceofficial.com.
Sources: the official README and our directory listing, checked 2026-10-18. Official site: github.com/MemPalace/mempalace.
Who is MemPalace for?
Developers using coding agents such as Claude Code who want long-term, local memory of past sessions that they can search.
MemPalace at a glance
- Open source: Yes (MIT License)
- GitHub: MemPalace/mempalace · 59,673 stars (as of Oct 21, 2026)
Key features
- Verbatim storage of conversation history (no summarizing)
- Semantic search scoped by wings and rooms
- Pluggable retrieval backend (ChromaDB by default)
- Local-first: nothing leaves your machine unless you opt in
- Agent skills for guided setup
MemPalace FAQ
What is MemPalace?
MemPalace is a local-first memory system for AI agents. It stores your conversation history as verbatim text and retrieves it with semantic search, without summarizing or paraphrasing it.
Who is MemPalace for?
Developers using coding agents such as Claude Code who want long-term, local memory of past sessions that they can search.
Is MemPalace free?
MemPalace'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 MemPalace open source?
Yes. MemPalace is released under the MIT License, according to its GitHub repository.
What are alternatives to MemPalace?
Similar tools include Hindsight, Graphiti, EverOS, LongMemory, MemOS and Supermemory.
MemPalace ratings and reviews
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MemPalace alternatives
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LongMemory
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MemOS
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Supermemory
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