The duo will replace injured Baba Rahman and Mahatma Otoo, who have been ruled out of the Black Stars friendlies against Senegal and Mali later this month.
Coach Avram Grant and his 22-man team will begin camping in Paris this week ahead of the two international matches which will be played on March 28 and 31 respectively.
Accam signed a contract with Chicago Fire on December 19, 2014 and made his debut for the Men in Red on March 22, in a match against the San Jose Earthquakes.