We do not currently have integrated support for Discord, but that is something we are interested in for our next release.
In the mean time you can integrate with Discord using our web API. You would need to program a service that integrates the 2 APIs and host it somewhere.
For offline you would need to use our open source offline Java SDK, or the open source web platform,
We can also develop a solution for you through our development services.
Contact [email protected]