RideX is a transportation company. RideX's primary business is ridesharing; with the RideX app, users can hail a cab in their area. Thanks to RideX's ubiquity, the company guarantees that a cab will take no longer than ten minutes to arrive at a user's destination in any urban environment. Exceptions to this speed guarantee include severe weather and emergencies.

“Aren’t RideX cabs supposed to pick passengers up within ten minutes?”

“Yeah, X stands for express, that’s their whole thing.”

“The car showed up at least fifteen minutes after Ezra requested it. I know for a fact there are plenty of RideX cabs in Queens, and I’ve never had to wait more than the promised ten minutes for one.”

– Benjamin Adelson and Samuel Martin in A Rogue Game