Lawyers for accused Boston Marathon bomber Dzhokhar Tsarnaev claimed in court papers Friday that the feds tried to recruit his older brother to spy on greater Boston’s Chechen and Muslim communities.

“The FBI asked [Tamerlan Tsarnaev] to be an informant, reporting on the Chechen and Muslim community,” the defense alleged in a motion filed in federal court in Boston, The Boston Herald reported.

But the feds denied the allegation.

“The government has no evidence that Tamerlan Tsarnaev was solicited by the government to be an informant,” they said.

Tamerlan, 26, was killed in a shootout with cops after the bombing last April 15, which killed three and injured more than 260 others.

His brother Dzhokhar, 20, was later captured at gunpoint and is awaiting trial, which is scheduled to begin in November.