LiveRail's API documentation links to "LiveRailAPI PHP class" but it's a dead link:
http://test.api.liverail.com/LiveRailAPI.zip / https://test.api.liverail.com/LiveRailAPI.zip (LR links to the former but writes the latter).
Does anyone happen to have it...?
Turns out the class' new home is a secret invite-only repository within https://github.com/liverail.