that would be very very useful, to have files from another app send here for management. regular REST API would be ideal, i think.

Agree.

. Add webhook for admin notifications : link created, viewed, downloaded, uploaded, new file ...

. Add webhook for admin account notification : no space left, need renew ...

. Add webhook to create "Requests" link

API

. account management

. same as webhook creation

Right of the top, the usecase that I am thinking for the API is the ability to upload, download, update and delete a file.