I am trying to figure out a way for somehow fetching the all the items from a given category. I don't even know if it is legal to do so. But im curious :) I need to gather the items then i will put them in my own database by using C#.net or java, it doesn't matter.
Is there any API or service for doing so?
Any help would be appriciated.
Ebay has a developer network. And an API to find things You can view the information here: https://www.x.com/developers/ebay/products/finding-api
The other option is to write a scraper.