SoapUI is a free and open source cross-platform functional testing
API automation and load testing framework
Automated API Testing and Quality Assurance
A web application for testing webservices
Mock service for SOAP/REST webservices to support automated tests.
http soap rest server stub dynamic response test automation
Simple application for testing XML Web Services in Maximo
A collection of plugins for SoapUI and SoapUI Pro
a powerful little soap client.