Name	Protocol/Format	SDK	Status	Sandbox
APIC-EM SDN Controller with REST based APIs	REST		Preview
WAN Automation Engine (WAE) SDN Platform for the WAN	REST		Released	Coming Soon
VIRL A network simulation platform including virtual machines running Cisco's core network operating systems			Released
Cisco Open SDN Controller The Cisco supported version of the OpenDaylight Software Defined Network (SDN) Controller.	REST	Sandbox, Python, REST	Released
NeXt UI Toolkit Provides network centric topology components, with rich APIs and good user experience. Designed for network visualization.	HTML5/JavaScript	Javascript	Released
NX-API NX-API is a REST based interface for interacting with Nexus switches, wrapping CLI in JSON and XML data models.	REST		Released
APIC APIC is the controller for DC solutions utilising the Nexus 9K switch.	REST		Preview

Networking Dev Center

NeXt is HTML5/JavaScript based toolkit for network Web Application.Now it's free for you to use!