OK, some investigation:
The Eye-Fi ecosystem was rebranded in September 2016.
The old cards, and the Eye-Fi software, could take pics off the card, and upload directly to the Eye-Fi cloud, Facebook, or an FTP server.
But this still required some internediary device (tablet or PC) to do the actual upload. The Eye-Fi card did not have enough brain to log onto a particular FB account and do its thing.
But those old cards are now deprecated. There is/was much uproar over this. I know *I* didn't like it.
Post Sept 2016, Eye-Fi was rebranded and refunctioned into Keenia.
The new cards and Eye-Fi (Keenai) software, of which I have one (32GB Mobi Pro), can't do that anymore.
It will, given an intermediary tablet or PC, upload the pics to the Keenai cloud. You can view them from there.
Read more here:
http
/www.diyphotography.net/eyefi-drop-support-cards-will-magically-stop-working-september-16-2016/
https
/help.keenai.com/hc/en-us/articles/235062648-What-does-Eyefi-Cloud-becoming-Keenai-mean-for-Eyefi-Mobi-Mobi-Pro-customers-
To your original question, no, you cannot "log onto" the card and view its contents. It is not a 'server' that would allow that functionality.
Bottom line...the cards will upload to some other device. That device and software can automatically upload to the Keenai cloud.
Or, you could create some script on that device (tablet or PC) to upload to Facebook or elsewhere. Or log onto that device remotely.
The card cannot do it on its own, nor can you log onto the card. It does not have a large enough brain for that.
May I ask what is the use case for this? There may be a different solution that would work for you.