The name "Eon McKai" is a pseudonym and a tribute to punk singer Ian MacKaye. McKai was involved in the internet-based alt porn scene soon after its emergence and photographed some of the early sets on SuicideGirls. After graduating from the California Institute of the Arts School of Film/Video, he decided he wanted to go into directing pornography and introduced himself to Pornographic film directors Veronica Hart.
Hart put him in touch with the adult video company VCA Pictures, who signed him as a director in 2004.
In 2006, after producing several features for VCA, McKai was signed by Vivid to head a new imprint of theirs called VividAlt. McKai"s films are alt porn-themed hardcore pornographic films, casting younger actors with an "alternative" punk, goth, or otherwise subcultural look, many of whom are not established porn actors.
Going against the predominant trends in adult video, McKai prefers to shoot features with a plotline and high production values rather than gonzo porn. His influences include Andy Warhol, early "artistic" pornographic directors such as Alex de Renzy, The Dark Brothers, and Stephen Sayadian, as well as the aesthetic of alt porn websites such as SuicideGirls, BurningAngel, and GodsGirls.
McKai"s work has generally been well received by alt porn fans, but has also been criticized by those who feel that he is appropriating the aesthetic of alternative subcultures for use in pornography, or who question his credibility and connection to alternative subcultures.
After leaving the porn industry, one of the actresses in his films, Keiko, referred to McKai as "edgy as a butterknife". Others, such as porn reviewers Roger Pipe and Scott McGowan, denounce McKai for what they see as his artistic pretensions, with McGowan stating "If people jack off to your art, you"re not the artist you think you are".