See the API's various operations for details on their request parameters and response data.

OperationMethodEndpoint
Contracts
List contractsGET/contracts/​identifiers
List products per contractGET/contracts/​{contractId}/​products/​summaries
Reporting groups
List CP code reporting groupsGET/reportingGroups
List CP code reporting group IDsGET/reportingGroups/​identifiers
List products per reporting groupGET/reportingGroups/​{reportingGroupId}/​products/​summaries