mempalace
View on GitHubThe best-benchmarked open-source AI memory system. And it's free.
Local-first AI memory system that stores conversation and project history verbatim and retrieves it via pluggable vector backends (ChromaDB default, plus Milvus/Qdrant/pgvector/SQLite/Rust). Ships a CLI, MCP server, and agent skills; benchmarks 96.6% R@5 raw on LongMemEval with no API key.
Use Cases
Give coding agents persistent long-term memoryMine project files and chat sessions into a searchable indexSemantic search over past conversations to answer 'why did we' questionsLoad prior context into a new agent session (wake-up)Run a local MCP memory server for Claude Code, Cursor, or CodexTeam shared-brain memory hub over HTTP/DockerRetrieval-augmented context for LLM chats with zero API callsBenchmark long-term memory retrieval (LongMemEval, LoCoMo, MemBench)
Built With
- Language
- Python
- Frameworks
- ChromaDB · MCP · Milvus · Qdrant · pgvector · SQLite · PyO3 · ONNX Runtime · Docker · Claude Code · Cursor · Codex · Gemini CLI · Antigravity
Tags
ai-memory · long-term-memory · agent-memory · semantic-search · embeddings · vector-database · chromadb · local-first · mcp · rag · retrieval · conversation-history · claude-code · cli · privacy · pluggable-backends