Can you give me more details on what exactly you're trying to do? You can create contacts in HubSpot using the Contacts API; if you have a specific objective in mind please let me know.
Actually, today, if a new user register to my blog, his email and and name doesn't automatically goes to the contact list in hubspot CRM.
I'm using Hubspot free crm + "HubSpot All-In-One..." plugin for wordpress
So how to make sure that if a new user register to my wordpress (to put comment for exemple), it is automatically added to my contact list in hubspot ?
Can you create a new topic with this question? In general, it's better to create a new post than to update an old one, particularly posts that are more than a year old.