In an example embodiment, three roles are defined for each of the following: resource discovery: provider, aggregator, and consumer. The provider is the one whose resource information will be shared. Rather than the provider needing to implement the complicated API, however, an aggregator may provide that role. The aggregator defines the API and is able to gather resource information from potentially multiple providers (and also, in some embodiments, other aggregators). The consumer then accesses the aggregator to obtain resource information rather than directly accessing the provider.