WASHINGTON — Six months after the Occupy movement first used protests and encampments to turn the nation’s attention to economic inequality, the movement needs to find new ways to gain attention or it will most likely fade to the edges of the political discourse, according to supporters and critics.

“They have fewer people, and it’s not a new story anymore that there were people protesting in the streets or sleeping in parks,” said Neera Tanden, the president of the Center for American Progress, a liberal organization that has strong ties to top Democrats and has encouraged the protests. “They need to think of new ways to garner attention and connect with people around the country.”

Driven off the streets by local law enforcement officials, who have evicted protesters from their encampments and arrested thousands, the movement has seen a steep decline in visibility. That has left Occupy without bases of operations in the heart of many cities and has forced protesters to spend time defending themselves in court, deterring many from taking to the streets again.

In Oakland, Calif., which at one point last year appeared to be one of Occupy’s strongholds, activists have had less than a handful of marches this year and no longer have any encampments in the city, according to a police official there. In New York, where the police evicted protesters from Zuccotti Park in November, the few protests in the past few weeks have been smaller than the ones last year, the police said.