Can I list my property on the MLS without an agent?

NO. Here is an explanation.

A Multiple Listing Service (MLS)A clearinghouse through which member real estate brokerage firms regularly and systematically exchange information on listings of real estate properties and share commissions with members who locate purchasers. The MLS for an area is usually operated by the local, private real estate association as a joint venture among its members designed to foster real estate brokerage services…. is an association of real estate brokersA person or firm that acts as an agent between providers and users of products or services, such as a mortgage broker or real estate broker. See also “Mortgage Broker.”… and agents to cooperate with each other to buy and sell homes. By sharing properties for sale in MLSA clearinghouse through which member real estate brokerage firms regularly and systematically exchange information on listings of real estate properties and share commissions with members who locate purchasers. The MLS for an area is usually operated by the local, private real estate association as a joint venture among its members designed to foster real estate brokerage services…., properties sell faster. MLS brokers offerA formal bid from the home buyer to the home seller to purchase a home…. compensation to each other to make it worthwhile. In other words, help me sell mine and I will help you sell yours.

Without a system of compensation and standards for cooperation it does not work.  Before MLS, each brokerA person or firm that acts as an agent between providers and users of products or services, such as a mortgage broker or real estate broker. See also “Mortgage Broker.”… sold their own listings. Buyers had to go to each broker to find out what listings they had.