The Navimatrices

Untold eons ago, the navimatrices were made by a race now long-dead to chart and blaze the paths between worlds. What became of their makers is not recorded in their data-banks, although most suspect it was some type of cataclysm rather than a slow decline, given how many navimatrices were left inert and adrift, scattered across the omniverse.
Over time, a few have re-activated following contact with other worlds and beings. They have adapted form and function, retaining their original imperatives to travel between worlds and to serve a higher cause or purpose. Their creators long since gone, the surviving navimatrices find new masters to serve or people to aid to give their existence meaning.
Perhaps the most famous navimatrix is the friend and ally of The AlterniTeens, known as “the Navagatrix.” Although her form is not typical of her kind (in-as-much as the navimatrices have a “typical” form any longer), her abilities are.
While most navimatrices are housed in robotic shells of some type, a few are known to act as the “brains” of omnivessels, dimension-traveling ships sailing the gulfs between worlds. Their mental abilities, skills, and powers are similar, merely incorporated into the vessel they oversee.