Folders are labels that group datasets in the sidebar. They do not change the on-disk path of the files. Your data, data shared with you, and team data can all use folders.
The account portal sidebar groups datasets under:
The public portal also groups public datasets by folder when a folder is set.
You can create a folder when you:
CHESS 2026, ReliabilityTests, MAGICSCAN).
Upload accepts a folder form field (name, not a filesystem path):
curl -X POST "https://scientistcloud.com/api/upload/upload" \
-H "Authorization: Bearer $TOKEN" \
-F "file=@/path/to/file.nxs" \
-F "user_email=you@example.com" \
-F "dataset_name=Scan 42" \
-F "sensor=4D_NEXUS" \
-F "folder=CHESS_4D"
Dataset settings can also store folder / folder_uuid. See Upload API and Datasets API.