FortniteDotNet is a simple and easy-to-use library used for interacting with Fortnite's HTTP and XMPP services. Features include interactions with parties and friends, general API data, and more. You can find it on GitHub here.
This simple library allows you to programmatically query the Epic Games store front. The response is modeled similar to the output from their GraphQL API endpoint. Both sync and async calls are supported. See Github project for a sample project.