Messages indicative of events are transmitted from a computer network to a management system using an agent device. The agent device receives a web service event collector from the management system. The web service event collector includes event message transformation instructions and an endpoint definition. After the web service event collector is initialized, an event message transmitted from an event source is received using the web service event collector. The event message indicates an event associated with the computer network. Using the event message transformation instructions, the event message is transformed into a format usable by the management system. The transformed event message is then transmitted to the management system.