There's only one officially authorized multiplayer modding platform for GTA, and it's not Rage:MP.
Gaming Community by Max Level on MSN
Take-Two issues cease-and-desist to GTA V modding platform
Take-Two Interactive issued a cease-and-desist to another modding platform. As Rockstar Games consolidates its multiplayer ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results