List "registered" VST,VSTi?

I look at the API reference,and it seem not possible to create a list from all registered Renoise instruments and effects…

I’am wrong?

Yes!
Go to Terminal and print:
Available devices for tracks (include native and VST effects):
rprint(renoise.song().selected_track.available_devices)

Available VSTi for instruments:
rprint(renoise.song().selected_instrument.plugin_properties.available_plugins)

Thank you very much👍‍‍