Hi, @Sameer.
We won’t be writing code, but we can guide you in using the HubSpot APIs.
The Contacts API allows you to create contact records in your HubSpot CRM, but it cannot retrieve contacts from Webflow. For that, you would need a way to get contacts out of Webflow via an API. This may prove to be a problem, as the only publicly documented APIs I can find for Webflow are for their CMS. (There don’t appear to be any CRM endpoints.)
If you were able to access Webflow “contact” objects via an API, you would need to build a middleware integration to place and translate calls between the two systems. This will require development skill and/or resources which this Forum cannot provide.
Please let me know if I have misunderstood your question.