Missouri Revised Statutes Title XXII. Occupations and Professions § 343.010. Auctioneers must have license--auctioneer defined

1. No person shall exercise the trade or business of a public auctioneer by selling any goods, property or real estate, without a license.

2. “Auctioneer”, as used in section 150.380 and sections 343.010, 343.070 to 343.105 is one who sells goods, merchandise, or property of any kind, at public or private auction, for another person, and who receives any commission or compensation of any kind for conducting such sale; but not including one who conducts such a sale by or under the jurisdiction of any court, or pursuant to any judicial judgment or order, or any foreclosure sale of real estate, and not including any owner of any goods, merchandise or property of any kind, who himself conducts such sale.