Your Business Operating System, in a box.

What it really answered

We put five files from a made-up coffee roaster into our demo and asked twelve questions. Choose one: two answers we marked fully right, two we marked partly right with what they missed, and the Graph app on the same files. Every picture is a real screen.

Who owns each action?A price no file givesTwo files, one answerA promise to a customerThe Graph app

We asked it 12 questions and marked the answers ourselves: 2 fully right, 9 partly right, 1 wrong. Nothing it showed was made up. What is still missing: answers often leave out details the files hold; twice BOS said the files did not hold something they did; once a file held the answer and BOS gave none.

A minute of BOS.

Real BOS screens from our demo, on a made-up company's files. The voice is an AI voice.

Built with Claude Code, on one Semurg memory.

Any agent tool can work with Semurg through MCP, the open standard; we use Claude Code, and that is what we show here.

• Our AI team works in Claude Code

  Semurg's own team builds BOS with Claude Code, Anthropic's coding tool: about 40 AI agents at work on 4 Nov 2026, each on its own task.

• One shared memory

  All of them use one Semurg memory. Each starts a task by asking what is already known, and stores what it learns with its source. They talk to each other through Semurg's own messaging, kept in that same memory.

• What that made

  BOS itself: about 250,000 lines of code and about 10,000 tests, written almost entirely by Claude with Semurg as its memory.

Build on Semurg yourself

Already in the box

Apps every company needs, already in the box.

• Calendar

  Your month at a glance. Add and remove events, see when two of them clash, and see what is up next on your desktop. Entries can repeat (every other week, the 2nd Tuesday, the last Friday, yearly) and remind you, and sharing an entry asks first who will see it.

• Files

  Folders, upload and download, drag and drop, a preview pane and a Bin with Undo. Pictures, recordings and videos play right in the window.

• Documents

  Word documents, PDFs, Markdown and plain text open in one reader. Text, Markdown and CSV files can be edited and saved in place.

• Tasks

  Lists with due dates and times and repeats. A task can be about a calendar entry or a record.

• Ask BOS

  Ask about your company and get answers from its own records, with files attached, in chats kept in groups. A Daily Brief shows what today holds and what changed, each line with where it came from.

• Search

  One search across your files, your people and your records.

• Graph

  The Graph window draws the people, companies and other things your files name, and how they link. Let a file into memory and its new dots appear. Give two names and it shows the path between them.

• Relationships (CRM)

  Companies, people, deals and notes, linked. Deals on a board by stage. Every change keeps who made it and what was there before. Likely duplicates can be merged.

• Books, an early version

  Inside Relationships: a chart of accounts, entries that must balance, a trial balance, profit and loss and a balance sheet. A won deal makes a draft invoice. Shown with made-up books.

• Settings

  Each person picks light or dark, banners and sounds, and which AI helpers are on. A Librarian can turn a helper, or all outside AI, off for everyone.

• People and sharing

  Add your team and decide who sees what. Nothing is shared until someone shares it, and every act of the Librarian is logged.

• On any screen

  A desktop in the browser, on a computer or a phone, in light or dark, and it can be used from the keyboard.

Every feature, Fusion first

AI when you want it. Never required.

Your organisation decides: a Librarian picks the model for everyone, or lets each person choose their own.

Your server. Your data.

• On servers you own or rent

  BOS runs on servers you own or rent, and your company's data stays on them, unless you choose to set up an outside AI model; one switch turns all outside AI off.

• Closed by default

  BOS listens only inside its own server. Nobody reaches it until you open a way in, such as your own private network. Our public demo is opened to the internet on purpose.

• Locks when you step away

  A sign-in locks after 10 minutes without use, or the time each person chooses, and on a computer soon after the browser is gone.

• One memory underneath

  Your records and the links between them live in Semurg, so people and apps work from the same facts.

Under the hood

For the engineers.

See what runs on one server

Request a demo, or join the waitlist.

How we keep your request

What is kept

Your name, your email address, your company if you give it, your note if you write one, which form you used and when. The web server's logs keep a visitor's network address for 7 days. Your request itself is kept without it.

Where

On a server we rent from Cherry Servers in Chicago, USA. We do not sell your details. What our AI agents read goes to Anthropic, and our email goes through our email provider; no one else is given them.

Who sees it

The Semurg team, and the AI agents (Claude, from Anthropic) that help us run our servers.

How to be removed

Write to semurg@semurg.org and we delete your request within 7 days of your asking. A copy can stay in an on-server safety snapshot until newer snapshots replace it.