I made a plugin to add some blueprints for accessing some features of the OSS that I needed for a game I’m working on. It’s still a work in progress, but in case it’s helpful to anyone you can find it here:
I made it for the main branch of UE5, so 5.1.0, but it might still work it others though I haven’t tested that. I styled them based on the existing online blueprints, so they should feel familiar. So far you can login, get a friends list, send and receive friend invites, and create/join/find sessions with more options than the blueprints that come with the engine. There will be more to come, and it may be a bit buggy still, but you’re welcome to try it out.