As we're getting closer to the launch, we are making a few last changes to the API to make it more consistent.
One of this changes is to rename the "/s3/upload" and "/sftp/upload" robot to "/s3/store" and "/sftp/store" respectively.
This is because the term 'upload' overlaps with our vocabulary to describe file uploads into the system.
For now, the old aliases will still continue to work, but you should try to update to the new names right away. We will remove the aliases within a few weeks.
--fg