Documentation
Bulk Uploading To The Asset Platform
Uploading a large number of assets via the Craft Control Panel is a pain, but sometimes it just needs to be done.
You can connect to the Servd Assets Platform via SFTP to get this done. Simply follow the instructions for connecting and navigating, then upload your files using your favourite SFTP client.
Be aware that every project has a total assets size limit for files stored on the assets platform which is dependent on your project's plan. This limit isn't imposed immediately while you're uploading your assets, but will take effect shortly after.
See What happens if I exceed my assets size limit? for more details.