ProVide receive links are integrated with HTTP-POST and can be used in for example CURL like in the following example to upload 'file.zip' to the ProVide server.
curl -u :password -X POST '(ProVide receive link)' -H "Content-Type: binary" --data-binary '@/path/to/file/file.zip'
Another example doing the same things just using wget instead of CURL:
wget --post-file="path/to/file/file.zip" "(ProVide receive link)" --header="Content-Type: binary"
The only thing you need to do is example the (ProVide receive link) with the receive link you are using. it does not however need to be CURL or wget as it can be used with any HTTP-POST.