The document describes the XCRI-CAP Aggregator API and tooling. The aggregator collects course data from any provider into a unified repository by periodically pulling and indexing XCRI-CAP documents. It includes a feed manager for uploading documents, a discovery interface for searching, and APIs for third party use and direct submission. The overall architecture includes interfaces for managing feeds, searching harvested data, and directly accessing the underlying Elasticsearch index or triplestore. Future work includes expanding the APIs, improving search capabilities, and releasing client libraries and code.