Customer chat with agents on call
Give every customer a private, encrypted line to your business. Configure when your agents greet, answer and assist, and know your team can step into the room at any moment.
Independent European chat infrastructure
Discretion, built in.
Mr. Butler is secure chat for your team, your customers and your AI agents, running on independent, EU-sovereign infrastructure. Every word is end-to-end encrypted and your data rests in Europe by default. The app is free, so you can start talking to your agents the moment it lands on your phone, and chat for your whole team starts at just €3 a seat each month.
The doors open in
10 December 2026 · 00:00 CET
Early access opens on 10 December 2026 at midnight Central European Time.
Team room3 people · 1 agent
end-to-end encrypted
you
Remind me to send the board pack on Friday at 9.your agent
Consider it done. I'll nudge you on Friday at 09:00.sam
Could it draft the summary as well?your agent
Already on it. You'll find it right here when it's ready.Agents in every roomYour own, always on, part of the conversation
End-to-end encryptedSealed before it ever leaves your hand
EU-sovereign by defaultIndependent infrastructure, rooted in Europe
Your own hardwareBare metal to first message in minutes
Made for
Whoever you are, a room is waiting for you.
From a single curious mind to a whole enterprise, Mr. Butler meets you exactly where you are. Pick your place at the table and see what's in store.
A butler of your own, on call day and night.
- A private agent that never sleeps, ready for reminders, scheduled jobs and the questions that strike at midnight.
- Every conversation end-to-end encrypted, with your data resting in Europe by default.
- Your model, your key. Choose the mind behind your agent and bring your own key for it.
- One free app for every Matrix server you call home, ours and anyone else's.
How you get in
Download the free app and start talking to your agents straight away.
An open platform with the door left wide open.
- Chat runs on Matrix, the open standard, so anything you build can step into the same encrypted rooms with any Matrix SDK.
- Remote workspaces for your coding agents. Claude Code and its peers run in isolated sandboxes, signed in with your own subscription or an API key.
- A management API and versioned agent events put agents, credentials and members within reach of your own code.
How you get in
Open your first room on the shared service in moments and start building right away.
Sovereign chat for your whole team, without running a single server.
- Customer chat with agents on call. Give your customers a private line, and decide exactly when your agents join the conversation.
- Build your product around it and let Mr. Butler carry the secure messaging while you carry the vision.
- European from the very first message, on independent infrastructure you never have to babysit.
How you get in
Your team is chatting within a few clicks, from €3 a seat each month for five seats or more, with a dedicated installation waiting for the day you outgrow it.
Your hardware. Your chat. Your rules.
- A dedicated installation in our cloud, in yours, or on your very own hardware.
- Bring your own hardware and own the chat infrastructure outright. Any bare-metal server with NVMe storage will do, with every server, backup and key inside your walls.
- Your agents live beside your chat, on machines you control.
How you get in
Bring a bare-metal server with NVMe storage, run the installer, and you're live in minutes.
Secure chat
Sealed on your device. Opened only on theirs.
Every message is encrypted before it leaves your hand, and it stays that way across the network and on the server. Encryption isn't a switch you have to remember. The whole product is shaped around it.
sealed
Your device
Sealed the moment you hit send.
still sealed
The network
Anyone listening in hears only noise.
still sealed
The server
Its database and backups hold nothing but ciphertext.
opened
Their devices
Opened only where the people and agents in the room are.
Who's in on the conversation
- The people in the room, on their own devices.
- The agents you invite. An agent has to read a message to answer it.
- Your organization's admins. Your organization holds the keys to its own conversations, and every member is told so at sign-in.
Who's left outside
- The network your words travel across.
- The server's database and backups. They only ever hold sealed messages.
- Every other organization on the service. Your agents and data are walled off from theirs.
Rooted in Europe, independent by design.
On the shared service, everything your organization stores lives on independent European infrastructure. Bring your own hardware and it stays exactly where you put it. Your agents speak to the model provider you choose, so where those requests travel is always your call.
How we compare
Encryption is where most messengers stop. It's where Mr. Butler begins.
Every secure messenger promises privacy. Others let you bolt a bot on from the outside. Mr. Butler builds your own always-on agents right into encrypted rooms, on an open standard, with Europe as home.
| Feature | Mr. Butler | Threema | Signal | Telegram | |
|---|---|---|---|---|---|
| Your own AI agents, built into encrypted roomsBuilt in | YesAlways on, isolated, with the model you choose | PartlyBots you build and host on a paid gateway5 | PartlyBusiness bots only, general AI assistants barred6 | NoUnofficial tools only | PartlyBots, outside end-to-end encryption2 |
| End-to-end encrypted by default, groups included | Yes | Yes | Yes | Yes | NoOptional, one-to-one only1 |
| Built on an open standard | YesMatrix | NoOpen code, its own network | No | NoOpen code, its own network | NoIts own protocol |
| One app for many servers | Yes | No | No | No | No |
| Runs on your own hardware | Yes | YesOnPrem edition | No | No | No |
| Made for organizations | Yes | YesThreema Work | PartlyBusiness is for customer contact3 | No | No |
| Home jurisdiction | EU | Switzerland | USA4Meta | USA4 | UAE |
| How it's paid for | SubscriptionsThe app is free | App sales and licences | Meta, advertising | Donations | Founder, subscriptions, advertising |
- Telegram encrypts end to end only in optional secret chats between two people. They are off by default and not available in groups.
- Telegram bots receive messages through Telegram's servers, outside end-to-end encryption.
- WhatsApp Business is designed for talking to customers, not for a team's own conversations.
- The US CLOUD Act lets US authorities demand data held by US providers, even when it is stored outside the US.
- Threema Gateway is a separate, paid API. Businesses build and host their own bots on it, and it offers an end-to-end encrypted mode.
- Since 15 January 2026, WhatsApp's business terms bar general-purpose AI assistants. Business bots for a defined service, such as support or bookings, are still allowed.
Based on public information as of November 2026. The Mr. Butler column describes the platform as it opens to early access. Product names belong to their owners.
How it works
Chat with agents. Chat with people. Leave the safety and stability to us.
The app is made for conversation and nothing else. Encryption, isolation and upkeep are looked after quietly behind the scenes, and agents, keys and members are arranged in a separate web portal. All that's left in the room is the conversation.
Where you are
The Mr. Butler app
A free mobile app that connects to every Matrix server you belong to, with your team and your agents in the very same rooms.
encrypted chat
Inside your organization
Your agents
Each one lives in its own isolated space and never clocks off, ready for reminders, scheduled jobs and every question in between.
your API key
Your choice
Your AI provider
Bring the key to whichever provider you trust, and choose the mind behind your agents.
Separately · in your browser
The web portal
Create agents, add credentials and welcome new members. Chat never happens here.
What you can build
One secure foundation. Endless things to build on it.
Chat infrastructure with agents built in and room for the coding harnesses you already love. Here are a few of the places companies can take it.
Remote workspaces for coding agents
Hand every developer an isolated workspace in moments, with Claude Code and other coding agents ready to go. Sign in with an existing subscription or an API key, then direct the work from a chat on your phone.
subscription sign-inAPI keyisolated sandbox
Secure messaging, built right in
Weave encrypted conversation into anything you make, from a booking app to an internal tool. No outside messaging service sits in the middle, and your users' words never leave infrastructure that answers to you.
€10a month
for individuals
for individuals
€3a seat each month
for teams of five or more
for teams of five or more
Secure chat at a nominal price
End-to-end encrypted chat rooted in Europe, for less than a coffee a seat. The app itself is free. Agents, developer workspaces and dedicated installations are priced on their own, and you'll see every number before the doors open.
For enterprises · bring your own hardware
Sovereignty you can walk up to and touch.
Roll in a bare-metal server with NVMe storage, run the installer, and minutes later Mr. Butler is humming away under your own roof. The chat server, the agents, the encryption keys and the backups all live there, and every piece of the infrastructure behind your conversations belongs to you.
- Every server, backup and key stays inside your installation.
- The agents are yours as well. They work on your machines, right beside your chat.
- Your people keep the Mr. Butler app they love, connected to a home of your own.
From bare metal to first message
minutes, not months-
1
Bring
A bare-metal server
Any machine with NVMe storage, in your rack or your data centre.
-
2
Install
Run the installer
The chat server, your agents, the keys and the backups settle in.
-
3
Talk
Say hello
Your people open the free app, connect and send the first message.
Shared service
Step right in
For individuals, builders and startups. A walled-off organization of your own on independent European infrastructure, a few clicks away. €10 a month for individuals, or €3 a seat for teams of five or more.
We run it for you
Dedicated installation
Your own, in the cloud
An installation reserved for your company alone, in our cloud or in yours.
Only your company inside
Bring your own hardware
Your own, on your machines
Bring a bare-metal server with NVMe storage and install it yourself in minutes. The chat infrastructure is entirely yours.
You own the infrastructure
For builders
Build something of your own on top.
Mr. Butler is an app you'll love using and a platform you'll love building on. Chat runs on Matrix, the open standard for secure messaging, so your own creations can step into the very same encrypted rooms.
The Mr. Butler app
Ready and waiting for your team.
matrix
Your organization
Encrypted rooms and agents
roomspeopleagentsagent events
any matrix sdk
Your app
A client, an internal tool or a workflow only you could have dreamed up.
Management API
Agents at your command
Everything the web portal can do, now within reach of your own software.
A management API
Create and manage agents, credentials and members from your own code, through the same API the portal uses.
Open agent events on Matrix
A published, versioned description of what agents say in a room, from activity to approvals to transcripts, readable by any Matrix SDK.
Workspaces for coding agents
Isolated sandboxes for Claude Code and its peers, ready in moments and signed in with your own subscription or an API key.
Where we are
The foundation first. Then the doors swing open.
We're finishing the platform before anyone moves in, so the very first people through the door start on solid ground.
-
1
Now
Laying the foundation
Independent European infrastructure, with security and isolation built into every layer.
-
2
Next
Mr. Butler moves in
The app settles into its new home, focused entirely on conversation.
-
3
10 December 2026
Early access
The first guests arrive. A small group, so we can listen closely.
-
4
Then
Open sign-up
Everyone is welcome, and your own corner is a few clicks away.
Save your seat for 10 December.
Drop us a line and tell us what you'd do with Mr. Butler, whether that's a private agent of your own, a product built on top or a home on your own hardware. We'll write back before the doors open. There's no sign-up form, so your address goes nowhere else.