UEFN WebAPI eligibility — cross-server monthly leaderboard

Hello,

I maintain the published Fortnite island PimentoTraining1v1 under /toukae@fortnite.com. I would like to implement a server-authoritative monthly top-10 eliminations leaderboard shared across public instances, including offline players and historical months, displayed inside the island on all supported platforms.

The current public Verse documentation lists /UnrealEngine.com/WebAPI and states that licensed users map a client_id class to an endpoint. Could you confirm whether this project can obtain that access, and provide the application process and documentation for endpoint registration, authenticated score submission, permitted stable player identifiers/display names, and responses back into the island?

Per-player persistence and Windows-only companion applications do not cover the required cross-server, mobile-compatible behavior. Please advise if another supported integration is available.

Thank you.