I haven't used RPT for a very long time, but i dimly remember that for APIs like SOA etc. you needed the SOA extension.
OR a much better tool is to use DevOps Test Integrations and APIs (new name for Rational Integration Tester) which is part of DevOps Test Workbench (https://www.ibm.com/docs/en/devops-test-workbench/11.0.1?topic=devops-test-integrations-apis). This tool has a very powerful support for testing many types of APIs, protocols and technologies. It can provide functional, integration and performance testing. Have a look at it.
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Osman Burucu
Product Manager
IBM
Vienna
00431211454746
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