Mem9 is an open-source, project-scoped memory service for Codex, Claude, and other MCP-compatible coding agents. It keeps durable project knowledge and CLI session metadata available across tools and conversations.
Install mem9
For anyone using mem9 โ no Lulu account needed# stdio server โ install per the repository README: https://github.com/luuhung93/mem9
9 field-tested tactics as a designed playbook plus skills your coding agent can run. Free.
Get the Kit โFAQ
mem9 installs from source โ follow the repository README.
3 out of 100, computed from cross-registry traction signals (installs, stars, registry presence) โ never influenced by sponsorship.
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