Akin was recalled from the Orioles' alternate training site Saturday.
Akin will join the major-league roster for the first time after putting up solid results over four years in the minors. The southpaw served as a starter in the minor leagues, but he could take on a bullpen role with the Orioles for the time being. Over 24 starts with Triple-A Norfolk last season, Akin posted a 4.73 ERA and 131:61 K:BB over 112.1 innings.