by rahilp
One memory layer, every AI tool. Store anything once — recall it in Claude, ChatGPT, Cursor, or any MCP client. Self-hosted on Cloudflare's free tier.
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# Add to your Claude Code skills
git clone https://github.com/rahilp/second-brain-cloudflareGuides for using mcp servers skills like second-brain-cloudflare.
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#3 Product of the Day on Product Hunt
You use Claude for some things, ChatGPT for others, Cursor for code. But your context — your projects, decisions, preferences — doesn’t move with you. You re-explain yourself constantly.
Second Brain fixes that. One shared memory, available in every AI tool you use.
And unlike the built-in memory inside any single app, this one is yours. It lives in your own account. No platform controls it, and no platform can take it away.
Connect Second Brain to whichever AI tools you use. Then tell it things once. It finds them later by meaning, so asking “what did I decide about the pricing model?” surfaces the right note even if you never used those exact words when you saved it.
|Tool |What it does |
|-------------|------------------------------------------------------------|
|remember |Store anything: ideas, decisions, project context |
|append |Add updates to an existing entry without creating duplicates|
|update |Replace an entry's content entirely |
|recall |Finds memories by meaning, not exact wording |
|list_recent|Browse recent memories by date |
|forget |Delete an entry |
Memory is only useful if it actually gets filled. Second Brain connects to the tools and moments where context naturally lives.
brain remember, brain recall, and more from your terminal — npm install -g second-brain-cf-cliremember mid-conversation, right when something mattersBefore you deploy: You’ll be asked to set an
AUTH_TOKEN. This is the password your AI clients use to connect.Quick option: Use a memorable phrase like
coffee-lover-2026Secure option: Run
openssl rand -base64 32in your terminal and paste the resultSave it. You’ll need it in the next step.
That’s it. Your memory is live and ready across every tool you connect.
# Verify it's working (replace with your worker URL and token)
curl -X POST https://<your-worker-url>/capture \
-H "Authorization: Bearer coffee-lover-2026" \
-H "Content-Type: application/json" \
-d '{"content": "second brain is working", "source": "test"}'
# → {"ok":true,"id":"..."}
npm install -g second-brain-cf-cliintegrations/ios-shortcuts/integrations/bookmarklet.jsCloudflare Workers · D1 SQLite · Vectorize · Workers AI · MCP TypeScript SDK · MIT License
All free tier at personal scale. Your data stays in your own Cloudflare account.