How do I obtain an API token

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We're trying to use OSC to its fullest "Wow, great stuff, we'll stay with Oracle" potential and connect using a REST API connection to pull data into Alteryx -- which is unsupported, allegedly, but not impossible to connect through. Regardless, we're stuck trying to find an API token to insert into the connection properties and the instructions we've found have us turning in circles in the Oracle world.

Can anyone supply a simple path/way that directs us in how to obtain this API Token, or to accurate instructions on how to obtain one?

Thanks!!