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Second Brain for AI

Second Brain for AI

Persistent memory for Claude, ChatGPT & Cursor. Free.

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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 Brain for AI makers

Here are the founders, developers, designers and product people who worked on Second Brain for AI

Rahil Pirani
Rahil PiraniFounder building AI-first search tools
Second Brain for AISecond Brain for AI