How to integrate FullContact API with Zoho CRM API?

How to integrate FullContact API with Zoho CRM API?

Essentially, FullContact is a lookup for more information on a person when certain parameters are passed (for example email, name, company). On GET request, the FullContact API should return XML or JSON of whatever available public information there is on a person. What I want to do is a POST onto CRM Leads of that data.

I've been looking and trying to use Webhooks from Zoho but have not been able to do a successful POST onto my Leads module. (Probably an issue with the XML formatting) 

FullContact also has a parameter in their GET requests called "WebhookURL" that will basically POST the data retrieved to whatever the URL is in that parameter (which I put in the Zoho POST URL).