Describe how API-X can interact with existing service registry and discovery technologies

[birkland]

(e.g. consensus-based distributed registry, DNS-based discovery).  

• API-X would seem to have a clear role in publishing a list of services available on a given object on the web as linked data, (e.g via a link rel and service document).  Backend services might leverage discovery via this mechanism, or may prefer a native approach that uses some other existing technology
• Consider Zookeeper/curator, consul, Eureka

[birkland]

This is described in service instance registry. The service ontology accommodates service instance registries described by other ontologies, with the expectation that add-on software components (implementations of ServiceInstanceRegistry) would be required to engage such technologies.