To list all available versions of all matching packages, including packages that cannot be installed in this image, use the -af option. The -f option cannot be used without the -a option. You might want to specify a portion of the version string to narrow these results. Specifying the special version string @latest shows the same result as the -n option shows.
$ pkg list -af '*toolkit@0.99-0.175.2' $ pkg list -af '*toolkit@latest'