Is it possible to integrate LanguageTool into KDE spell checking engine?
KDE already have support for multiple spell checking engines: KDE Documentation -
So will be good to see integrated support for LanguageTool in KDE linux systems.
A spell checker usually works on words without taking the context into account. That’s not enough for LanguageTool, it needs at least complete sentences as input. I suggest you contact the KDE community about this.