Hello,
We don’t have a publicly available API for Fortnite, as you can see here: Get the data, build the future. - Tracker Network APIs for Developers
If you already have a functioning demo of your project, you can contact [email protected] with your requirements, but again, we don’t have much we can offer for Fortnite.
We may find paths to work together on the right projects, but these opportunities are limited.
Best of luck though!