Services:Chat

Kosmos Chat is a service for chat rooms and instant messaging. The service is separate from the chat apps you can use with your account. With a Kosmos Chat account, in the form of username@kosmos.org, you can chat with people on thousands of different servers.

Apps

The service is based on XMPP (also called Jabber when used for chat), meaning that most chat/messaging apps which support XMPP/Jabber will work with your account. Here are a few apps that we can recommend:

Android

Conversations is a fantastic app, and currently the gold standard for XMPP chat on smartphones. It is easy to use, and supports modern end-to-end encryption between all your devices via OMEMO.

Buy it on Google Play (supports development of this open-source app), or install it from F-Droid and consider a donation instead.

Linux / BSD

Dino is a modern and simple chat app for Linux. Full support for OMEMO encryption, and easy to use.

Get a package for your distribution

macOS

Beagle IM is a promising new chat app for macOS users. It's still a bit rough around the edges, but supports a lot of modern XMPP features.

Install it from the App Store

How to connect

Usually, you only need your user address and password to configure your chat application.

Your user address is your-username@kosmos.org.

Details

For advanced users and/or troubleshooting:

Server/host

xmpp.kosmos.org

C2S port

5222 (StartTLS), 5223 (TLS)

S2S port

5269

Bosh URL

xmpp.kosmos.org:5443/bosh

In-band Registration

Closed

Multi-user Chat (MUC)

The server is host to a variety of chat rooms. The server's MUC domain is kosmos.chat. Thus, room addresses look like chatroom-name@kosmos.chat. Only local users (with a kosmos.org address) are currently allowed to create chat rooms on kosmos.chat.

Come talk to us in kosmos@kosmos.chat!

Tor hidden service

You can connect to the XMPP service directly from the Tor network. The configuration is the same as for clearnet, except for the server to connect to:

Server/host

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