Let your AI finally know you.
Opus Twin opens an encrypted server that belongs to you. You put your documents and emails there, and your own Claude account becomes your assistant on that server: it reads your documents end to end, shows the source of every answer and drafts replies to your emails in your own voice.
Requires a paid Claude plan (Pro, Max, Team or Enterprise).
Ready in three steps
No technical knowledge needed. We run the server, security and maintenance; you just use it.
Subscribe
After payment, your own server is ready within a minute.
Connect and upload
Connect your Claude account in one click, drag in your documents and add your mailbox.
Talk
Pick your server in the Claude app (web, desktop or phone) and ask.
Everything you expect from an assistant
Actually reads
PDF, Word, Excel, PowerPoint, scans and photos are converted to text. Long documents are read in full, not skimmed.
Cites its sources
Every fact comes with the file name and page. If it cannot find something, it says so instead of inventing it.
Writes like you
It learns your greetings, tone and sign-off from your sent emails and drafts replies in your voice.
Never sends on its own
Emails are only saved as drafts. Sending is always your decision.
Your own encrypted server
Your data never shares space with anyone else. The disk is encrypted and the server cannot reach the internet.
For every profession
Lawyers, doctors, accountants, architects, consultants, agencies. For anyone who works with documents and email.
Security by default, not as an option
- Each user's disk is encrypted with its own key (LUKS2, AES-256).
- Your server runs in an isolated sandbox (gVisor). It cannot reach other users or our systems.
- The server has no internet access except to Claude. Even if a document or email tries to trick the assistant, data cannot leave.
- Your mail password never enters the assistant's environment. The assistant cannot send email, only save drafts.
- Backups are encrypted. When you cancel, your data is permanently destroyed with its key after 30 days.
One plan, everything included
- Your own encrypted server
- 50 GB for documents and email
- Unlimited document processing and OCR
- Multiple mailboxes
- Access from Claude web, desktop and mobile
- Daily encrypted backups
The Claude plan is purchased separately from Anthropic. Cancel anytime.
What you need
- A paid Claude account (Pro, Max, Team or Enterprise).
- Your documents: folders on your computer or ZIP files.
- Optionally your mailbox: Gmail, Yandex, iCloud, Yahoo, Zoho or any IMAP server.
Frequently asked questions
Where is my data stored?
In the European Union, in Hetzner's data centre in Helsinki, Finland, on an encrypted disk reserved for you. While you talk to Claude, the content the assistant reads is sent to Anthropic to generate the answer; that part is governed by Anthropic's own terms.
Will the assistant send email for me?
No. It only saves drafts into your mailbox's Drafts folder. You open the draft and send it yourself.
Which mailboxes can I connect?
Gmail and Google Workspace, Yandex, iCloud, Yahoo, Zoho and any business mail server with IMAP. You create an app password in your account; the panel walks you through it. Outlook and Microsoft 365 support is in preparation.
Is the assistant ever wrong?
No AI is flawless. That is why Opus Twin makes the assistant cite every fact, say clearly when it cannot find something and tell you which files it could not read. For important decisions, check the source.
What happens if I cancel?
You keep access until the end of the paid period. Then your server is stopped and you can recover your data for 30 days. After 30 days the disk is permanently destroyed together with its encryption key.
Why do I need my own Claude plan?
Your assistant runs on your own Claude account. That way you reach your server from any device where you use Claude, and usage stays within your own plan.