From June 11, 2021 (verbatim)
Might be Multiplayer Compatible now
There's still some bugs and missing features but it's running somewhat stably on tested servers.
Developer information
Projects on Modrinth are automatically available through a Maven repository for use with JVM build tools such as Gradle.
maven { name = "Modrinth"; url = "https://api.modrinth.com/maven" }