The Matchmaker is an information agent that helps make connections between agents that request services and agents that provide services. The Matchmaker system allows agents to find each other by providing a mechanism for registering each agent's capabilities. An agent's registration information is stored as an "advertisement," which provides a short description of the agent, a sample query, input and output parameter declarations, and other constraints.
When the Matchmaker agent receives a query from a user or another software agent, it searches its dynamic database of "advertisements" for a registered agent that can fulfill the incoming request. The Matchmaker thus serves as a liason between an agent that requests services and an agent that can fulfill requests for services.