A broker is an independent party whose services are used extensively in some industries. A broker's prime responsibility is to bring sellers and buyers together, and thus, a broker is a third-person facilitator between a buyer and a seller.

In forex, a broker is an agent or company that executes orders to buy and sell currencies for their clients.

They act as intermediaries between banks, bringing buyers and sellers together for a commission paid by both parties or by the initiator.

Brokers are agents working on commission and not principals acting on their own accounts.