Persistent memory for Claude, ChatGPT & Cursor. Free.
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.
Second question! ( I separate it so you get more engagement! haha)
Could I connect this to a Raspberry Pi voice "flat mate" and use it as a shared memory layer?
So I can access to all my ChatGPT memory with that home device too?
About Second Brain for AI on Product Hunt
“Persistent memory for Claude, ChatGPT & Cursor. Free.”
Second Brain for AI launched on Product Hunt on May 31st, 2026 and earned 266 upvotes and 46 comments, earning #3 Product of the Day. 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.
On the analytics side, Second Brain for AI competes within Open Source, Developer Tools and Artificial Intelligence — topics that collectively have 1.1M followers on Product Hunt. The dashboard above tracks how Second Brain for AI performed against the three products that launched closest to it on the same day.
Who hunted Second Brain for AI?
Second Brain for AI was hunted by fmerian. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Second Brain for AI including community comment highlights and product details, visit the product overview.
fmerian
Second question! ( I separate it so you get more engagement! haha)
Could I connect this to a Raspberry Pi voice "flat mate" and use it as a shared memory layer?
So I can access to all my ChatGPT memory with that home device too?