Prosecutors are expected to respond in writing, and the court could order a hearing into the claims.
In a lengthy and heavily redacted motion, Kenyatta's lawyers accuse witnesses and intermediaries of lying, threatening other witnesses and pulling together a corrupt group of prosecution witnesses to testify against Kenyatta, who is accused of organizing attacks on his political opponents in late 2007 and early 2008.
Last week, the court issued an arrest warrant for a Kenyan, Walter Barasa, who is accused of bribing or attempting to bribe ICC prosecution witnesses in Kenya not to testify.
Kenyatta's filing came ahead of an African Union summit on Saturday which is expected to debate the possible exit of some nations from the court, which many leaders on the continent accuse of unfair bias against Africa. So far, all the court's indictments are against Africans.