Also an early Black Panthers supporter, Albert's serious politics and satiric street theater fueled San Francisco's New Left political movement that combined anti-war protesters, black power supporters and hippies, the San Francisco Chronicle reported.
The New York native moved to California in 1965 and, within days, smoked marijuana with beat poet Allen Ginsberg and joined the anti-war movement.
Albert, Jerry Rubin and Abbie Hoffman founded the Youth International Party in 1967 and ran a pig for president.
Albert was named, but not charged, in the so-called Chicago Seven case arising from protests at the 1968 Democratic National Convention.
In 1970, he helped escaped LSD advocate Timothy Leary find refuge in Algiers.
In the 1970s, Albert and his wife sued the FBI for harassment and won $20,000.
After moving to Oregon in 1984, Albert wrote "Who the Hell is Stew Albert?"
"My politics haven't changed," Albert wrote on his blog two days before he died Monday.