I have been poking around looking at desktop blogging clients and the dozen or so that I’ve tried so far all fail. Many do not know how to talk xmlrpc to wordpress. Some assume you know the name of the xmlrpc protocol used, and that was educational…but ultimately unhelpful. Many fail to parse the xmlrpc. WordPress for a while was even giving me lots of “404” and “403” errors when trying to inspect xmlrpc.php responses. Great.