The team announced the news after its 9-6 loss to the Kansas City Royals.
Moyer agreed to a minor league deal with the Blue Jays last month, giving the oldest pitcher to win a game in the big leagues another shot.
In a two-start audition for Toronto's Triple-A affiliate, the Las Vegas 51s, Moyer was 1-1 with an 8.18 ERA. He allowed 17 hits, including three home runs, in 11 innings.
Moyer began the season -- his 25th in the majors -- with the Colorado Rockies, going 2-5 with a 5.70 ERA in 10 starts. But the Rockies designated him for assignment in late May.
A week later, the Baltimore Orioles signed Moyer to a minor league contract. The deal came with the stipulation that he would make three starts with Triple-A Norfolk, and after that the Orioles had to promote him or grant his release.
After his third start, the Orioles offered Moyer another start with the Tides. He instead opted to become a free agent.
Moyer went 1-1 with a 1.69 ERA over 16 innings at Norfolk.
Information from The Associated Press was used in this report.