Private Cloud Chat API & Messaging Infrastructure is an incredibly flexible chat API platform delivered in Docker Containers. Build & run powerful chat experiences within your own high-trust environment.

docker pull mitterio/mitter


Kubernetes support coming soon

Meet Sandbox Sandbox is a hassle-free way to try on-cloud and quickly prototype apps.

  • Simply sign-up and start building
  • Fully-featured developer dashboard for easy set-up & testing of apps
  • Easily migrate all data & configurations to a production container (Coming Soon)

Designed and Built for

Absolute Control and
No Assumptions’s core is a messaging processor that’s as low-level as your database or user store. This gives you granular control over every part of the platform and incredible flexibility while building your app.

Abstract yet all-powerful, like a database – simply hook in to build what you want

Low-level tooling and extreme control on every feature of the platform

Scale easily with an infrastructure built to handle millions of messages

Learn how works


For Everything and Anyone

Whether you’re a large enterprise, a shiny new startup, or an awesome developer – chances are you can think of nifty ways to make everyday life better with chat.

Check out all the spaces that you can build amazing chat experiences for, with

See Use Cases


A Powerful Chat Platform’s features & chat SDKs don’t just let you build chat quickly – they make your life easy and your apps awesome.

Access Control Lists

Define custom behaviours and rules for your users, messages, channels and more

Custom Profiles

Create custom profile attributes for your app’s channels and users

Custom Payloads

Enable custom message types for location sharing, payments, and more

Explore all features

We have quick-guides to help you easily build essential features into your chat app. Check out Recipes →

What’s in a Container? containers let you self-host the entire platform, map APIs to your own domains, set up a truly private chat server, and run everything on your own tech stack. That means:

  • Full control over your service’s security & privacy
  • Greater independence for your service
  • Stronger integrations with services in your tech stack
  • Deploy-management with Kubernetes & Docker Swarm (Coming Soon)

Want to learn more about Containers? is a truly fresh take on how you consume and build with chat APIs, so we understand if you have questions. Read our Docs to understand how Containers work, how to set one up and how to start building with them!

Download Read the Docs

Need end-to-end solutioning?

We’re game! Our incredibly talented team of developers and product experts can conceptualize, prototype, and build your final production-grade app. We work hand-in-hand with clients to ensure the highest quality output for every project.

Get in touch

Built by Developers for Developers

We are borderline obsessed with building amazing sh*t for developers, and is a reflection of just that. It’s a platform that’s about more than just features – it’s designed for ease, pure flexibility, and complete control over the amazing chat apps you’re building.

Say hi to the team

Join our Slack channel