No, they are not available now as omnysys has discontinued NEST plus APIs service.
Yes you can still use NEST RTD and that is available for free.
You can use NEST plus for charting, both type of charts are available intraday as well historical.
Thank you for sharing the information @sumosanammain I completely agree with you that reading alone will bring nothing to the plate. It is like you have read everything about swimming but never get into the pool. I know things don't work in that way I myself don't prefer that either, I am not a...