At the core of Discord is its VoIP feature. VoIP covers both audio and video calls but for an MVP, it might be enough to offer audio calls. Besides that, a Discord-like app MVP must have sign up, security features, and notifications. Discord itself haven’t launched text chats with its first iteration but if you’re not in a hurry to launch, it will be sensible to build texting functionality (direct messaging and group chats) in the MVP. Other possible MVP features include server roles and permissions, and media/file sharing as the bare minimum.