Jason Edelman comments on his blog:

There is a lot of buzz around network APIs such as NETCONF and RESTCONF. Here we’ll take a quick a look at these APIs on Cisco IOS XE. On the surface, it seems Cisco IOS XE is the first network device platform that supports NETCONF and RESTCONF both driven from YANG models.

Great master post on the support for APIs in IOS XE. Jason really did his homework here!

Read more at: NETCONF, RESTCONF on IOS XE