Lumi
Your AI finally remembers you. No more starting from zero.
SubscriptionMCP2,387 impressions#16 of its week
Lumi adds persistent, searchable memory to Claude, ChatGPT and Gemini so AI remembers your context across sessions.
- for
- Developers and AI enthusiasts who use LLMs and need cross-chat context.
- pricing
- freemium
Key features
- Cross-LLM Memory — Store and retrieve context across Claude, ChatGPT and Gemini from a single vault.
- Semantic Search — AI-powered search finds relevant memories by meaning, not just keywords.
- Vault Organization — Create vaults and collections with hierarchical control to structure memories.
- Document Upload — Upload PDFs and docs for instant retrieval-augmented generation without setup.
- End-to-End Encryption — AES-256 at rest, TLS 1.3 in transit, row-level isolation and 30-day backup deletion.
- MCP OAuth Connect — Connect your tools in ~60 seconds via MCP token authentication.
Use cases
- Recall project specifications when switching from ChatGPT to Claude.
- Search past design decisions stored as PDFs without re-uploading them.
- Reduce token usage on long-running projects by retrieving only relevant context.
Lumi vs alternatives
 Lumi |  ContextAtlas |  MemoryGraph |  Unified MCP Server | .png?width=64){kind=icon} MCP Bridge by Appfactor | |
|---|---|---|---|---|---|
| Best for | Persistent memory layer for LLMs | Code-aware context for Claude | Graph memory for AI coding agents | Broad MCP integration platform | API-to-AI bridging |
| Pricing | Freemium | Free | Free | Subscription | Free |
| DevHunt upvotes | 1 | 10 | 7 | 29 | 8 |
| Launched | May 2026 | May 2026 | Dec 2025 | Jan 2026 | May 2026 |
- Lumi vs ContextAtlas: Provides a persistent MCP atlas tied to code repositories, not a cross-LLM memory layer.
- Lumi vs MemoryGraph: Graph-based MCP memory server focused on coding agents, whereas Lumi targets general LLM chat memory.
- Lumi vs Unified MCP Server: Offers a generic MCP server with many integrations; Lumi is a specialized memory product for LLMs.
- Lumi vs MCP Bridge by Appfactor: Connects any API to any AI agent, while Lumi stores and retrieves user-generated context across chats.
Lumi FAQ
How does Lumi keep my data private?+
All memories are encrypted with AES-256 at rest, TLS 1.3 in transit, and isolated per user; the team cannot query your data.
Can I use Lumi with any LLM?+
Currently Lumi integrates with Claude, ChatGPT and Gemini via MCP OAuth.
What happens when I delete a memory?+
The memory is instantly removed and permanently erased from all backups within 30 days.
Will my data be used to train AI models?+
No. Lumi never sells data or uses it to train AI.
Is there a free tier?+
Yes, the Free plan includes 300 memories, 2 vaults and semantic search at $0/month.
How does Lumi reduce token usage?+
It retrieves only the most relevant memories for each prompt instead of sending the full conversation history.
Summarized by DevHunt from llmmemory.ai · Sep 29, 2026. Details may change; check the official site.
