Mo. Rev. Stat. § 82.220

Such city, in taking an appeal or prosecuting a writ of error in any judicial proceeding, shall give bonds as required by law, but it is hereby released from the obligation of law to furnish security therefor. All such bonds shall be executed by the mayor or chief magistrate of such city, and shall be taken in all courts of this state as full compliance with the law in such cases, and all laws and parts of laws inconsistent with this provision are hereby repealed.