A search didn't pull up anything, so...
I have an old cell phone (android) and ran across an app "ip webcam" - it is asso. with Ivideon although I don't use it. I start up the app and connect to 192.168.0.xx:8080 in my browser and there is the hallway/kitchen/entry/etc - a small hunk of cardboard (as a wall mount), some trimming, some tape, a couple of stickpins and > webcam <. In ZM, remote, http, 192...., 8080, /video, 480x800 and it works.
I'm thinking of going to the repair shop and getting a phone with a higher quality camera where the cell part doesn't work (or 2 or 3 or...). It doesn't need a carrier, just wifi. Does need a perm. power plug - although it could be used without one - for a short period.
cal