Sending audit log data to Splunk from PL/SQL

We have been tasked with obtaining audit log data from a vendor's cloud hosted application via a web service call. We have written Oracle PL/SQL to obtain the data and parse it. We now need a strategy for getting this data into a Splunk Enterprise instance. How can this be done in the simplest, most secure way with as few additional software add ins or components possible? We are looking into DB Connect and Universal Forwarder but need to be able to call the forwarder from PL/SQL or Linux based process or make the data available for Splunk Enterprise to come for it in tables or files via an automated process.