files API reads and writes the sandbox filesystem as the sandbox user. Paths are absolute, or relative to /home/user.
Watch a directory
watch.py
Signed upload and download URLs
Hand a URL to a browser or another service so it can move a file without your API key. The URL is signed for one path and expires.signed_urls.py
Copy files with the CLI
Over SSH (see SSH):scp.sh
anona-compute push, which copies a git working tree into a sandbox.