The best-benchmarked open-source AI memory system. And it's free.
MemPalace is a local-first AI memory system that stores conversation history verbatim and retrieves relevant passages through semantic search. It is for AI-agent users who want searchable, structured memory on their own machine, with a replaceable retrieval backend.
Latest release v3.9.0 — v3.9.0 — one hub for every agent · 31 Aug 2026
These files are MemPalace/mempalace's own configuration. They tell Codex, OpenCode and Claude Code how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.
▶ MemPalace: The Tool That Makes Claude Stop Forgetting Better Stack · about MemPalace/mempalace · on YouTube → AGENTS.md A 4 tok CLAUDE.md A 1,683 tok