Here you can find links to the vSphere DR and Migration API Guide and Reference and to the documentation for VMware Cloud Director Availability.
API Guide
VMware Cloud Director Availability 4.7 - vSphere DR and Migration API GuideAPI Reference
VMware Cloud Director Availability 4.7 - vSphere DR and Migration API ReferenceVMware Cloud Director Availability Documentation
https://docs.vmware.com/en/VMware-Cloud-Director-Availability/index.html