Rap mogul Jay-Z has begun the process of selling off his small stake in the Brooklyn Nets — a move that’s necessary because he’s seeking certification to represent NBA players as an agent.

Sources said yesterday that the public face of the Nets hopes to sell off his less-than-1 percent interest in the team in time for his new sports-management business, Roc Nation Sports, to represent players entering the NBA draft in June.

Jay-Z could still keep his interest in Barclays Center and remain on the board of directors of the arena’s holding company.

Jay-Z’s firm Roc Nation Sports partnered with Creative Artists Agency to launch the new sports-management business last week, signing Yankee star Robinson Cano as its first client.

Reps for Jay-Z could not be reached for comment last night.