Using the API to Send Messages / Alternatives

Hey everyone.
I want to allow users to invite their chess.com friends to use my website through OAuth (I've already set up OAuth and everything). It does not look like there is a way to do this via the chess.com DM system, correct?
What alternatives do you guys recommend to invite friends over to the website? For every user, I have a list of chess.com usernames that I'd like my user to be able to invite.
Thanks

I don't believe that's something that is possible by the TOS or would be allowed. There's nothing in the Public API that will allow it

There is no way they will add such features to public read-only API

Yeah, all of their APIs are read only sets of data. There is no ability to handle anything like that with the API. You can create an application that'll open up the message section of the website so that you can write a message yourself but that seems a bit pointless.

That would require an interactive API call and my guess that's not something that would be opened up even there.