Goalkeeper Keating and defender Mace are part of the 20-strong squad at the eight-team tournament in Czech Republic.
Both Keating and Mace made their first appearances for City in the 2021/22 season, which saw Gareth Taylor's side lift the Continental Cup and qualify for next season's Champions League.
England begin their competition against Norway on Monday 27 June at 4:30pm BST before matches against Sweden on Thursday 30 June and Germany on Sunday 3 July.
England last won the competition in 2009 with a squad featuring current City player Demi Stokes.
We will provide updates about Keating and Mace's involvement here on mancity.com.