We are working on Upload to Open Clipart Library API, it's correctly on
our dev server and we'll move it to live, when we will have clipart
remix option, and we do some test. We are working with ImageBot and
they are the first one that use the API on their site (there is Edit
button on their site that got to theirs), on their dev servers.
Do you want to implement OCAL Upload to Inkscape? If so I can give that
person(s) access right now to dev server (it's not protected we only
don't publish it's url publicly), or they can wait until it will be
live. I can send working php example that upload to OCAL from different
domain, (probably we will need to tweak API a bit to fit non www
application), I can send this code to person that will want to
implement this, the code for now it's only documentation (but it's very
simple and short).