Second Brain
A year of using AI should add up to something. One place your thinking stacks, across every tool, in an account you own.
What is Second Brain?
Second Brain is an open-source, self-hosted AI memory layer that connects to your existing tools like ChatGPT, Claude, and Cursor. It stores your conversations, notes, and decisions in your own Cloudflare account, making them searchable and synthesizable across all your AI tools. With features like AI synthesis, pattern derivation, and contradiction detection, it ensures your knowledge compounds over time.
What can Second Brain do?
- 01
AI Synthesis
Answers built from saved notes, not raw entries, with sources listed.
- 02
Pattern Derivation
Surfaces themes you never wrote down after searches.
- 03
Search by meaning
Finds notes by meaning, not exact wording or tags.
- 04
Smart Merge
Merges near-duplicates and corrects contradictions.
- 05
Importance Scoring
Ranks memories by AI score and frequency of access.
- 06
One brain, every tool
Works across Claude, ChatGPT, Cursor, Windsurf, and more.
- 07
Web Dashboard
Browse, filter, edit, and export memories to JSON or Markdown.
- 08
Self-Hosted
Runs in your own Cloudflare account, free and open source.
Use Cases
- People who use multiple AI tools — Keep one shared memory across Claude, ChatGPT, and Cursor so context carries over instead of restarting each time.
- Developers — Connect AI coding tools like Claude Code and Cursor through the Model Context Protocol to reuse saved context while building.
- Privacy-focused users — Self-host the entire memory layer inside your own Cloudflare account so no data is processed on external servers.
- Note-takers and researchers — Use semantic search and AI synthesis to surface patterns across saved notes without manual tagging.
Quick facts about Second Brain
- Domain Rating
- Platforms
- Web
- Languages
- English
Frequently Asked Questions
Second Brain Traffic Analysis
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