Second Brain gives your team one AI memory that works across Claude, ChatGPT, Cursor and any MCP client. Personal memories stay private, shared ones reach everyone, and every write is logged. Free, MIT licensed, running in your own Cloudflare account.
The more AI tools I used, the stranger their memory systems started to feel.
Claude knew one part of my life. ChatGPT knew another. Cursor understood a project until I switched tools. Every new assistant meant rebuilding context from scratch.
This is a question that does not get asked enough.
Right now, if you use a hosted AI memory tool, your context, your decisions, your preferences, your project history, all of it lives on someone else's servers. Governed by their retention policies. Subject to their pricing changes. Potentially readable by their team.
Version 2.4 makes Second Brain better at finding the specific memory you meant while reducing irrelevant connected context. Your existing memories benefit automatically. There is nothing to recapture or reindex.
Sharper recall
Better recovery of specific, older, and easily buried memories
More useful answers to why and how questions
Fewer close-but-wrong results and less graph noise
Strong existing matches remain protected while promising buried memories get another chance
I want to talk about something that doesn t get discussed enough in product development: what happens when you actually listen to your community instead of your roadmap.
When we launched v1 of Second Brain here on Product Hunt, we had a plan. Then the comments came in. People told us newer isn t always more correct. That conflicting memories needed an authority model. That compression should preserve the through-line.
We're live on Product Hunt today with the Second Brain desktop app. I wanted to share what this journey has actually looked like.
Every feature in this product came from a comment. Not a roadmap. Not a strategy session. A comment from someone in this community who told us what was missing.
Every AI conversation starts from zero. Your projects, decisions, and preferences disappear as soon as you close the chat. Second Brain fixes that. It is a self-hosted memory layer that works with Claude, ChatGPT, Cursor, and any MCP client. You can store context once and recall it by meaning instead of keywords. It includes duplicate detection, semantic search, and a web UI. Built on Cloudflare, it offers a free tier and your data remains yours. MIT licensed.
Most AI memory tools store your data on their servers. That means your context, decisions, and personal knowledge live in someone else's infrastructure, governed by their retention policies, subject to their pricing changes, and potentially readable by their team.
Second Brain v2 runs entirely on your own Cloudflare account.
