The guides
start here

Set up your brain, save something, and use it in another tool.

Start here

Set up your Second Brain
Download the app and open your dashboard for the first time.
Connect your AI tools
Add the tools you already use so they can read and write the same memory.
Your memory, day to day
Save something, then ask for it back, right from the dashboard.

Setting up for a team rather than for yourself? Read the teams guide straight after connecting your tools; it covers everything the team handoff adds.

A woman opens a laptop at a kitchen counter, coffee beside her, smiling with anticipation.

Use and maintain it

Capture from anywhere
Bring in notes, email, calendar and code without leaving the app you're already in.
Share a brain with your team
Give your team one shared layer while everyone keeps a private one.
Keep your brain up to date
Update the app and the Worker without losing a memory.
What it costs
See what stays free and the one way charges could ever happen.
Questions, answered
Find quick answers to what people ask before they start.

If you only came for one answer, start with the questions.

Go deeper: the wiki's Home page is the full documentation index, including the API reference and local development, which stay on the wiki as developer reference.

Checked against the wiki and v3.0.0 source on 7 September 2026

Take your context into
your next conversation.

Free, open source, and in your own Cloudflare account.

Get Second Brain

Start here

Set up your Second Brain

Connect your AI tools

Your memory, day to day

Use and maintain it

Capture from anywhere

Share a brain with your team

Keep your brain up to date

What it costs

Questions, answered

Take your context intoyour next conversation.

Take your context into
your next conversation.