The Core library allows you to use trace.moe within your c# code.
The Example project MoeTrace.Discord can tell you the anime by sending an image in to an Discord channel where the bot is present. By mentioning the bot at the image the bot will give you all information about the anime within the image.
You can also sent an image directly to the bot via an direct message. In this case you dont have to mention the bot and it will give you an answer.