X, the social media platform formerly known as Twitter, has issued cease-and-desist letters to the open-source project Nitter, demanding the permanent shutdown of Nitter instances and the project’s repository. According to a message posted on Nitter’s website, the letters were sent on August 24, 2026, accusing Nitter of unlawfully using and circumventing X’s Application Programming Interface (API) and associated data. X alleges that Nitter scraped X data and accessed X accounts and session tokens in violation of X’s rules, potentially breaching various state and federal laws, including the Texas Harmful Access by Computer Act and the Lanham Act. The cease-and-desist letter provided Nitter with a deadline of 5 p.m. EST on August 25 to comply. This legal action follows X’s previous attempts to disrupt Nitter, including technical measures that temporarily took down the flagship instance, Nitter.net, in 2024 after X implemented new API restrictions. Source

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