Running everything yourself
Clients, invoices, schedules, content. One thread instead of six tabs.
Everything you saved is still there.
Ask, and it comes back — as a file you own.
Start free →What is
Works inside Claude.
A few minutes to set up.
What is
Sebren?
Sebren gives Claude a place to write things down —
files you can open yourself.
People have been talking about building a second brain for years.
Sebren is the part that was missing — actually using it.
Who this is for
Sebren keeps it as a note you can open. You handle what's next.
Juggling several clients
Who asked for what, how far it got, what's due next. Just ask.
Days spent organizing, just to keep organizing.
You bought the templates to get your life and work in order,
but somewhere along the way, did the tool become the job?
You bookmarked it.
You'll never find it again.
You wrote it down.
In one of six apps.
You asked an AI about it last month.
That chat is gone.
Sebren does the filing and the finding.
You just talk.
Example conversations.
Today's work
“what am i supposed to be doing lately”
Sebren connects what you're working on now with what's overdue and what you haven't started — and tells you what to look at first.
A person you met
“save the person i met at today's meeting, i'll upload their card later”
Sebren saves the person, and connects them to the project they came up in.
An old memory
“what was that thing i watched a while back again”
If you left even a small note about it, one loose detail is enough to find it again.
You've talked to an AI about this before. New chat, and it's a stranger again.
Tell Sebren to remember, and it writes a file you can open yourself —
so you can pick it up months later.
Work
Anything marked in progress, untouched?
One is the odd one out: GlowLog's Secondary Product Page task. So yes, that one's in-progress in name only; you haven't touched it yet.
Watched, read, listened
What have I watched lately, again?
You most recently watched The Mandalorian (series, done on 2026-07-29, rating 4/5). Your note says you finished it through Season 3: "The best Star Wars show!"
Health
How many km did I run this month?
This month (July 2026), you've logged 71.52 km of running across 12 running days. Total: 71.52 km (average about 5.96 km per run, longest run was 07-10 at 12.02 km).
Know-how
What was that Figma shortcut again?
The note's own comment: knowing just these three makes a real speed difference when there are a lot of repeating sections (e.g. product pages).
Travel
Where are we staying? Near the station?
You're staying at Qingyuan Hotel Ximen for the Taipei trip — double room, NT$2,400/night × 4 nights, breakfast not included, check-in 15:00 / check-out 11:00. And yes, it's very close to the station — it's a 4-minute walk from MRT Ximen Station exit 6.
Work × life
Does my September timing actually work?
Your Claire Bennett note (KitchDot client) says: "Brand renewal talk for the next season's (fall) new product line is planned for early September. Until then, focus stays on wrapping up the summer renewal." So yes, it can work timing-wise, but only if the Claire conversation actually happens in that Sept 1–4 window, not later in "early September" generally.
See more examples
Real conversations, replayed.
Home on your desktop, on the move in the Claude app.
Same memory, either way.
Security
Plain text files. Nothing locked away.
Every note is a markdown file.
Open it anywhere, anytime.
In your own repository
Sebren writes into a GitHub repo that belongs to your account, not ours.
We only see that a tool ran
Our server logs which tool ran and when.
Never the title, never the content.
Leave whenever
Delete the connection and every note stays exactly where it is.
Here's how a note actually gets saved.
Claude gets your request, checks the rules for how things are filed,
then finds or writes the file in your repository.
That repository is private to your account.
Where you talkclaude.ai
Ask, and tell it to remember.
From the app, the browser, or your phone.
The relaySebren MCP
MCP — the connection Claude uses to reach outside tools, in one line: it's the plug, not the notes.
It only relays the request. The note itself isn't kept here.
Where notes liveYour GitHub
Your notes live in your own private GitHub repository.
Yours from the start, yours the whole time.
Want it in Obsidian too? Simpler than you'd think.
Your Sebren repository backs up cleanly with the Obsidian Git plugin.
Keep a copy on your computer and online, both in sync.
OptionalObsidian
Back it up with the obsidian-git plugin, or work with it locally too.
Get started
No card, and 100 saves a month, free.
Need more room? Plans start at $5/month. See plans