A universal ESB port for connecting applications to an enterprise service bus (ESB). The universal ESB port receives a message from an application requesting a service. The universal ESB port is capable of receiving and processing messages in any messaging format and any communication protocol. The universal ESB port determines, from the message, a communication protocol of the source application. The message is processed to extract a body of the message, and the message body is examined to determine a messaging format of the source application. The message is converted from the messaging format of the source application to a common messaging format understandable by the enterprise service bus to form a common formatted message. The common formatted message is then sent to the main body of the enterprise service bus.