PlayMaker Addon
Custom actions are available to handle most Curvy Splines' features using PlayMaker.
Download
Both the actions package and the examples package are available through PlayMaker's Ecosystem. Search for “Curvy” and select the relevant package(s).
Due to the fact that the PlayMaker team is not updating the Ecosystem regularly with the latest packages, I recommend that you get them from their official GitHub repository. As of the writing of this paragraph, the package version in the Ecosystem is 8.0.0, whereas the repository contains version 8.0.1 (in the 8.0.1 branch).
https://github.com/PlayMakerEcosystem/PlayMaker--ToolBuddy--Curvy