I'm trying to build a limited home automation for my handicapped wife using Raspberry PI. I am looking for open API light fixtures that I can control. It is in an holder house so neutral is not available in light switch boxes but I've seen wifi light adapters that plugs into a bulb socket and has a socket for an LED bulb. I just can't find something like that with an open API and I don't want to expose my house on the Internet.
Are there any open API automation systems that will work for this scenario?