Lumi

Lumi is a persistent memory layer for AI tools. Save your context, decisions, and documents once, and every Claude, ChatGPT, or Gemini session starts already knowing your project, preferences, and history. No re-explaining or copy-pasting old threads. Lumi indexes everything but shows only what's relevant per prompt, cutting token usage without losing context. You can upload PDFs and docs for instant RAG with no setup needed. Organize memories in vaults, search semantically, and connect via MCP. It is encrypted, private, and never used to train AI. Free to start with 300 memories and 2 vaults. Starter plan is $9/mo. Works in 60 seconds via OAuth with no config files needed.