All web API function are listed here: https://wyday.com/limelm/help/api/
Here's the help article about the "limelm.pkey.generate" function: https://wyday.com/limelm/help/api/limelm.pkey.generate/
The "version_id" is the field you're looking for.
Distinguishing between multiple products
We have two different products in our account. How do we indicate which product we want to generate a key for when calling the limelm.pkey.generate endpoint?
i cannot seem to find where to get the version_id from the site.
Click the product version in LimeLM, and then look in the URL bar in your browser.