Blake Lively claims Perez Hilton published more than 500 negative pieces about her unrelenting feud with Justin Baldoni — as she dukes it out with her co-star-turned-enemy for allegedly mounting a smear campaign against her.

Lively, 37, alleged that Hilton — whose real name is Mario Lavandeira Jr. — put out 540 “disparaging” videos and posts about her without first reaching out to her side for comment and which “generally regurgitate messaging that appears to be prepared by others,” according to court papers her lawyers filed in Manhattan federal court Tuesday.

The court papers also claim that Hilton used a slew of slurs and “mocking” epithets about her including calling her: “Blackface Blake,” “Lying Lively,” “Ku Klux Khaleesi,” and “Litigious Lively.”

The “Gossip Girl” star subpoenaed the gossip hack for any correspondence he may have exchanged with Baldoni’s side as she seeks to prove her claims that her “It Ends With Us” co-star-turned-nemesis carried out a smear campaign against her, with the help of the film’s production company Wayfarer Studios LCC and others.

Hilton last month filed papers seeking a protective order to stop Lively’s team from publishing journalists’ and influencers’ personal addresses when she subpoenas them — and he’s fighting her subpoena for his records in Las Vegas federal court.

Hilton told The Post in an exclusive statement that he’s not part of Baldoni’s alleged smear campaign against Lively and that he only published opinions he formed on his own by reading Lively’s suit and Baldoni’s since-dismissed countersuit.

“I was not part of any smear campaign against her,” Hilton said. “I was not working on behalf of anyone. I was not paid by anyone.”

“After reading Justin Baldoni’s lawsuit against her and his first amended complaint, my opinions and support shifted,” the influencer said.

Hilton also said that his work records are shielded by laws that protect journalists and said since he works and lives in Las Vegas, the issue should be fought in a court in the Silver State.

“She is asking me for information that is privileged,” Hilton said. “She is also asking me for information that she could and should obtain from the parties in this case, the Wayfarer defendants, not from me — a nonparty to this litigation.”

“I did nothing wrong,” he concluded. “I am not afraid of Blake Lively.”

Lively is asking Manhattan federal Judge Lewis Liman to force Hilton to comply with her subpoena and to force him to cough up attorney’s fees for any Hilton-related litigation. Her team claimed in the court papers that to date, Baldoni and the other defendants haven’t turned over any messages that Hilton exchanged with them.

The “A Simple Favor” actress claimed Baldoni sexually harassed her and then launched a campaign to tarnish her reputation. She claimed he shared details about his sexual conquests with her and the fact that he was addicted to porn.

After, Baldoni launched counterclaims accusing Lively and her “Deadpool” actor husband Ryan Reynolds of extorting and defaming him. Liman dismissed Baldoni’s suit in June.

Lawyers for Lively and Baldoni didn’t immediately return requests for comment Wednesday.