# Mr. Butler > Mr. Butler is secure chat for your team, your customers and your AI agents, running on independent, EU-sovereign infrastructure. Every conversation is end-to-end encrypted, your data rests in Europe by default, and your own agents sit in the room beside the people you work with. Early access opens on 10 December 2026 at 00:00 CET. Everything described here is the platform as it is planned to open. The Mr. Butler app is free. It connects to every Matrix server you belong to, so you can start talking to your agents straight away. ## Who it's for - Users: A butler of your own, on call day and night. Download the free app and start talking to your agents straight away. - Builders: An open platform with the door left wide open. Open your first room on the shared service in moments and start building right away. - Startups: Sovereign chat for your whole team, without running a single server. 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. - Enterprises: Your hardware. Your chat. Your rules. Bring a bare-metal server with NVMe storage, run the installer, and you're live in minutes. ## Use cases - A personal chief of staff in your pocket: An agent that remembers what you'd rather not have to. - A private research companion: Think out loud with an agent that keeps your questions to itself. - A household that runs itself a little more: One family room, one agent, fewer forgotten errands. - Client rooms for freelancers and consultants: A private room per client, with an agent taking the notes. - Customer chat with agents on call: Your customers get an answer at 3am. Your team gets their sleep. - Secure messaging inside your own product: Give your app a private conversation layer without building one. - Remote workspaces for coding agents: Direct your coding agent from your phone while it works in its own sandbox. - A fleet of developer workspaces on your own hardware: Every engineer gets a coding agent. Your source code never leaves the building. - Build an agent of your own: Teach the room a new trick. - Your own client or internal tool: Same rooms, your interface. - Agents provisioned by your own code: A new customer signs up and their agent is already waiting. - Headquarters for a distributed team: Your team lives in five time zones. Your agent lives in all of them. - An onboarding concierge for every new customer: A warm welcome that never forgets a step. - Sovereign internal chat for the whole company: Every conversation in the company, on infrastructure the company owns. - Rooms for confidential matters: For the conversations that must never leak. - An incident war room with a perfect memory: When everything is on fire, someone should be writing it down. - Agencies serving many clients from one app: Every client on their own server. One app in your pocket. - Frontline teams who live on their phones: Shift handovers that write themselves. - Moving work off a consumer messenger: Your business deserves better than a personal messenger with a work group. ## More - [Full details](https://mr-butler.com/llms-full.txt): every capability, use case, deployment option and the security model - MCP endpoint for AI assistants: https://mr-butler.com/mcp (Streamable HTTP, read-only, no key needed) - Contact: hello@mr-butler.example