I am about to implement a wordpress plugin to include some of your information in a wordpress blog. In the first version this plugin will display a very limited set of profile information, in further versions more is planned - though I don't know how much time I will be able to spend in the development of this plugin.
My question is: Will only I (as the plugin developer) need to register the application at api.stackexchange.com, or will every single user of that application have to register there?