Most of things would be connected into internet and it will be evolved into web of objects(WoO) which can share the information each of the thing-in-itself with the internet of things(IoT) service environment. The web of object in IoT objectifies and virtualizes things and it generates and provides new services with mashup of objectified things with context information. The thing in the web of object is embedded with web protocol and provides web services with things. This paper describes web of object platform which provides web-base IoT application services with various devices and describes pet-care services for the example of WoO based smart home service.