mempalace

MemPalace stores your AI conversation history verbatim and searches it semantically. Every Claude session, every project file, indexed locally. The structure is a metaphor: projects become wings, topics become rooms, so you can scope searches instead of querying a flat blob. It publishes 96.6% recall on LongMemEval with no LLM in the loop, and the benchmarks are reproducible from the repo.

Install is pip plus pointing it at a directory. ChromaDB is the default backend, embeddings run on CPU with a 300MB model, no API key required. The MCP server exposes 29 tools so Claude Code can read and write the palace directly during a session.

Solo developers using Claude Code heavily: install it. The 'wake-up' command that loads relevant context for a new session is the pitch and it works. Small teams: each engineer runs their own palace, there is no shared knowledge layer yet.

The catch: it's about two weeks old. The benchmarks are real but the operational track record is not. Breaking changes will happen, and fast-growing projects attract impostor domains. The README has a scam alert for a reason.