Is there a free video surveillance web server with an API for js applications?

Question

API

I would like to buy a computer and cameras, and install a ready-made server on it,
and I myself will write a client,
so that there is motion recognition and faces , I will

also consider paid options,
but I wonder if there are free and good ones,

or maybe there are such cameras that are sold with a ready-made web server?

or even a complete video set, but for everything to work offline,
the server distributes its Wi-Fi, and the client connects from a mobile browser

Answer 1

https://obsproject.com/

Answer 2

Buy overpriced cameras like HikVision. There cameras have face recognition and all sorts of smart things ..