PXE includes a variety of service provider implementations that perform communication or operation functions on messages.

• BPEL Service Provider — ([com.fs.jlo.bpel.provider.BpelServiceProvider]) extends the PXE container to support BPEL processes execution.
• HTTP-SOAP Protocol Adapter — ([com.fs.jlo.adapters.httpsaop.HttpSoapAdapter]) provides SOAP-over-HTTP communication.
• XSLT Service Provider — ({pxeapi:com.fs.jlo.serviceprovider.XSLTServiceProvider}) performs XSLT on messages in-container.