Quilt server hosting
Quilt is a mod loader that runs most Fabric mods. Pick Quilt when you make the server and add mods from the Mods tab.
No card needed. 3 GB free forever.
Why Quilt
It is compatible with Fabric mods and has its own mods. Choose it if a pack asks for Quilt.
Tools
Mods tab, Modrinth installs, a live console that names missing dependencies, backups and SFTP.
Questions
Can I run Fabric mods?
Mostly yes.
Plugins?
No, mods and Paper plugins do not mix.