Mo. Rev. Stat. § 367.130
The director may require the lender to file with the director a bond in the principal amount of one thousand dollars at the time of filing the application for a certificate of registration hereunder, or at such later time as the director deems necessary for the purposes of sections 367.100 to 367.200. The lender shall be the obligor, and the surety shall be approved by the director. The bond shall run to the state of Missouri for the use of the state or any person or persons who may have a cause of action against the lender-obligor arising out of the supervised business. The condition of the bond shall be that the lender-obligor will conform to and abide by the provisions of sections 367.100 to 367.200 and the laws of the state of Missouri relating to consumer credit loans, and the assignment or sale of wages, salaries, or other compensation, and will pay to the state and to any person any and all moneys that may become due under sections 367.100 to 367.200 or under any transaction which is a part of the supervised business. If in the opinion of the director the bond shall at any time appear to be insecure or exhausted or otherwise doubtful an additional bond in the principal sum of not more than one thousand dollars in form and with surety satisfactory to the director, shall be filed within fifteen days after notice of the requirement thereof be given to the lender by the director.
§ 367.130, RSMo