[quote]Are you working out how the Bungie REST API works just by inspection? They don't publish any details right?[/quote]Yes. It's somewhat easy just to perform an action in the browser and monitor the request and response. [quote]All I'm getting at is that it could change to require some authentication token, or there could be other unannounced API changes, right?[/quote]This is where the design of the library is critical. At the moment it would support something like an OAuth token with a few modifications, but I'm still unsure if it's the best design. It's really only the code relating to making requests that would need to change anyway. The rest of the code would/could probably stay the same. I got sneaky and wrote up a quick script to translate the JavaScript into C# for some of it ;).