MemPalace/mempalace
The best-benchmarked open-source AI memory system. And it's free. observed · 2026-08-28
Health v2 · maintenance only
81/100
- Activity 99
- Release rhythm 99
- Longevity 10
Flags: young
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: 6
- age_days: 151
- days_rel: 10
- days_push: 7
- n_releases_24m: 16
Adoption not part of the score
58666 stars · 7523 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
MemPalace is a local-first AI memory system that stores conversation history and project files as verbatim text and retrieves them via semantic search using a pluggable vector backend (default ChromaDB). It organizes memories into a hierarchical 'memory palace' structure (wings, rooms, closets, drawers) with a symbolic index, ships as a Python CLI, and requires no API key.
Use cases
- give my AI assistant long-term memory of past conversations
- search my Claude and ChatGPT chat history locally
- store project files and notes in a searchable memory index
- add persistent memory to Claude Code sessions
- run a local RAG memory store without API keys
- retrieve exact verbatim past conversations for an LLM
- index chat exports from Slack and ChatGPT for semantic search
When to choose
- you want verbatim, privacy-preserving local memory with no API calls
- you need scoped retrieval over long conversation history (people/projects/topics)
- you want an MCP-integrated memory for Claude Code or similar agents
- you prefer a pluggable vector backend and MIT-licensed open source
When to avoid
- you need a hosted or multi-user cloud memory service
- you want summarized or compressed memories rather than verbatim storage
- you need native Android/Termux support without a PRoot container
- you need a backend other than vector search without writing a plugin
Facets
cli-tool · maturity active
rag vector-database search-engine mcp cli llm-inference artificial-intelligence large-language-models developer-tools privacy self-hosted python cli windows cross-platform self-hosted ai-memory long-term-memory conversation-history semantic-search chromadb local-first verbatim-storage method-of-loci claude-code chatgpt-exports privacy-preserving no-api-key retrieval-augmented-generation ai-agents linux macos
5 sources
- readme: https://github.com/MemPalace/mempalace · fetched 2026-08-28 · 713d262df626
- homepage: http://mempalaceofficial.com/ · fetched 2026-08-28 · 1a96075ab775
- site_page: http://mempalaceofficial.com/guide/getting-started.html · fetched 2026-08-28 · 38c0c97b099d
- site_page: http://mempalaceofficial.com/guide/getting-started · fetched 2026-08-28 · 38c0c97b099d
- registry_pypi: https://pypi.org/pypi/mempalace/json · fetched 2026-08-28 · a9e8ee6dce1d
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| MemPalace/mempalace | main | 81 |
For agents
markdown · JSON · MCP: product_card(name="MemPalace/mempalace")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem