API to talk with the language server of a language

It would be great if you add to the monaco.d.ts file the API to talk directly with the server language of a language. For example, the typescript language provides a method to get the typescript worker, but not all languages have something like that, for example, the HTML language.

In my case, I embedded the Monaco editor in a custom IDE and I need to build custom UI to show the outline of the file and the documentation of the selected element in a file, for any language provided by default in the editor.