Headless Client?

Is there a source out there where I can use the client in a headless mode or do I have to write one myself in C#. Along with that can you use Realm Relay or K-Relay to do so?

I assume you mean making a program that doesn't require the actual game to be open?

RealmRelay can do that.

KRelays networking doesn't allow that.

You can use realmrelay to do that so yeah.

(You will have to modify the realmrelay source, not make js plugins.)