Ask HN: Rapleaf & alternatives?

Hey all,

I'm building a CRM. I would love to pull in social data on a contact in the CRM based on an email address like Rapportive does.

I've checked out Rapleaf but initially they don't seem very transparent about pricing or methods.

Would love to know if there are any alternative APIs I can use for such a service.. or if anyone can shed any more light on Rapleaf and how it works.

thanks