The AS400 PCML connector allows you to access RPG programs that are available on AS400 (renamed as IBM iSeries) servers using WSO2 ESB. This is done using Program Call Markup Language (PCML). The AS400 is a mid-range server used by small businesses and departments in large enterprises and has been re-designed to work with web applications in a distributed network.
...
For general information on using connectors and their operations in your ESB configurations, see Using a Connector. To download the connector, go to https://store.wso2.com/store/assets/esbconnector/AS400PCML/details/de0e97d2-211e-4bd6-bba2-0d5f6b8e2623, and click Download Connector. Then you can add and enable the connector in your ESB instance.
Supported ESB Version
WSO2 ESB 5.0.0 supports this connector. You can download WSO2 ESB 5.0.0 from here.