I think Braintree does it, kind of: "By using our Transparent Redirect (TR) and Vault, merchants can achieve PCI Compliance in days. TR and the Vault will eliminate the handling, processing or storing credit card data so you can qualify for the Self Assessment Questionnaire A, the shortest of the four SAQs."
http://www.braintreepayments.com/services/pci-compliance
edit: So, w/ Recurly I wonder if it's the same thing and I'd need to do the Self Assessment Questionnaire A when using recurly.js