Kinne, 24, is an undrafted free agent out of Tulsa. He signed with the New York Jets last summer but was released during training camp and later signed with the San Antonio Talons of the Arena Football League.
His quarterbacks coach in college was Press Taylor, who currently works as the offensive quality control coach for the Eagles.
In college, Kinne threw for 9,472 yards, an average of 249 per game, while completing 61 percent of his passes. He threw 81 touchdowns against 32 interceptions. On the ground, Kinne averaged 30.5 rushing yards per game with 15 total touchdowns.
He was named the Most Valuable Player at the NFLPA Collegiate Bowl All-Star Game following the conclusion of his college career.
Kinne will join four other quarterbacks on the crowded Eagles roster: veteran Michael Vick, 2012 rookie third-round draft pick Nick Foles, veteran Trent Edwards and former University of Oregon star Dennis Dixon.
Vick is the odds-on favorite to win the starting job in 2013. Most expected the 32-year-old to be cut following a dismal 2012 season in which he won just three of 10 starts and contributed 21 interceptions plus fumbles.
But he restructured his contract, adding a one-year deal worth up to $10 million.
Foles made six starts in 2012, leading the Eagles to a victory in just one game. Yet he played most of the time without a majority of the team's offensive starters, including Jason Peters, Jason Kelce and Todd Herremans—and at times, LeSean McCoy, DeSean Jackson and Brent Celek.
Foles also recorded a streak of 169 consecutive passes without an interception.
Edwards spent the season as the team's third quarterback, while Dixon was just signed this month.
Odds are high that Kinne won't even make the team's roster in 2013, as the Eagles will likely keep just three quarterbacks. But if Foles is traded, as many expect, and Edwards is cut, Kinne could find himself on the 2013 Eagles.
Then again, that ignores the possibility that the Eagles could still draft a quarterback in April.