openapi: 3.2.0 info: title: ISO New England Web Services API v1.1 Realtimehourlyoperatingreserve API version: '1.1' description: RESTful interface to ISO New England energy and market data. This OpenAPI document was DERIVED by API Evangelist from ISO New England's own published, machine-generated Enunciate technical documentation at https://webservices.iso-ne.com/docs/v1.1/ and the two XML Schemas it publishes (ns0.xsd, ns1.xsd, saved verbatim under schemas/). ISO New England does not publish an OpenAPI definition; the only provider-published machine-readable description of the interface is a WADL at https://webservices.iso-ne.com/api/v1.1?_wadl&_type=xml, which sits behind the same HTTP Basic authentication as the API and returned HTTP 401 to anonymous probes. Every path, method, parameter, description, media type and schema in this document is copied from the provider's published sources; nothing was invented. Each operation carries x-evidence naming the exact documentation page it came from. All feeds are available in XML and JSON, selected by adding a .xml or .json extension to the request URL or by sending an Accept header of application/xml or application/json. contact: name: ISO New England Ask ISO url: https://askiso.iso-ne.com/s/ x-provenance: method: derived derived_by: API Evangelist enrichment pipeline derived_on: '2026-07-27' sources: - https://webservices.iso-ne.com/docs/v1.1/ - https://webservices.iso-ne.com/docs/v1.1/ns0.xsd - https://webservices.iso-ne.com/docs/v1.1/ns1.xsd - https://www.iso-ne.com/participate/support/web-services-data not_provider_published: true note: Derived from provider-published HTML documentation and XSDs. Not an ISO New England artifact. servers: - url: https://webservices.iso-ne.com/api/v1.1 description: Production base path (HTTP Basic over SSL) security: - basicAuth: [] tags: - name: realtimehourlyoperatingreserve description: 6 path template(s) under /realtimehourlyoperatingreserve in the published ISO New England Web Services API v1.1 documentation. paths: /realtimehourlyoperatingreserve: get: operationId: getRealtimehourlyoperatingreserve summary: Default resource description: Default resource. Redirects to Real Time Operating Reserve Info . tags: - realtimehourlyoperatingreserve responses: '200': description: Successful response. content: application/xml: schema: description: Response payload is not described in the published documentation. application/json: schema: description: Response payload is not described in the published documentation. '401': description: Unauthorized - HTTP Basic credentials from an ISO Express account are required. Verified by anonymous probe on 2026-07-27. x-evidence: source: https://webservices.iso-ne.com/docs/v1.1/rest.realtimehourlyoperatingreserve.html harvested: '2026-07-27' /realtimehourlyoperatingreserve/current/all: get: operationId: getRealtimehourlyoperatingreserveCurrentAll summary: 'Get the current Real Time Hourly Operating Reserves ' description: Get the current Real Time Hourly Operating Reserves . tags: - realtimehourlyoperatingreserve responses: '200': description: a HourlyRtOperatingReservesElement containing the current Real Time Hourly Operating Reserves. content: application/xml: schema: $ref: '#/components/schemas/HourlyRtOperatingReserves' application/json: schema: $ref: '#/components/schemas/HourlyRtOperatingReserves' '401': description: Unauthorized - HTTP Basic credentials from an ISO Express account are required. Verified by anonymous probe on 2026-07-27. x-evidence: source: https://webservices.iso-ne.com/docs/v1.1/rest.realtimehourlyoperatingreserve.current.all.html harvested: '2026-07-27' x-xml-element: HourlyRtOperatingReserves /realtimehourlyoperatingreserve/current/location/{locationId}: get: operationId: getRealtimehourlyoperatingreserveCurrentLocationByLocationId summary: Get the current Real Time Hourly Operating Reserve for a given location description: Get the current Real Time Hourly Operating Reserve for a given location. tags: - realtimehourlyoperatingreserve responses: '200': description: a HourlyRtOperatingReserveElement containing the current Real Time Hourly Operating Reserve for the given location. content: application/xml: schema: $ref: '#/components/schemas/HourlyRtOperatingReserve' application/json: schema: $ref: '#/components/schemas/HourlyRtOperatingReserve' '401': description: Unauthorized - HTTP Basic credentials from an ISO Express account are required. Verified by anonymous probe on 2026-07-27. x-evidence: source: https://webservices.iso-ne.com/docs/v1.1/rest.realtimehourlyoperatingreserve.current.location.locationId.html harvested: '2026-07-27' x-xml-element: HourlyRtOperatingReserve parameters: - name: locationId in: path required: true schema: type: string description: The location id /realtimehourlyoperatingreserve/current/locationType/{locationType}: get: operationId: getRealtimehourlyoperatingreserveCurrentLocationTypeByLocationType summary: Get the current Real Time Hourly Operating Reserve for a given location type description: Get the current Real Time Hourly Operating Reserve for a given location type. tags: - realtimehourlyoperatingreserve responses: '200': description: a HourlyRtOperatingReservesElement containing the current Real Time Hourly Operating Reserve for the given location type. content: application/xml: schema: $ref: '#/components/schemas/HourlyRtOperatingReserves' application/json: schema: $ref: '#/components/schemas/HourlyRtOperatingReserves' '401': description: Unauthorized - HTTP Basic credentials from an ISO Express account are required. Verified by anonymous probe on 2026-07-27. x-evidence: source: https://webservices.iso-ne.com/docs/v1.1/rest.realtimehourlyoperatingreserve.current.locationType.locationType.html harvested: '2026-07-27' x-xml-element: HourlyRtOperatingReserves parameters: - name: locationType in: path required: true schema: type: string description: The locationType /realtimehourlyoperatingreserve/day/{day}/location/{locationId}: get: operationId: getRealtimehourlyoperatingreserveDayByDayLocationByLocationId summary: Get an entire days Real Time Hourly Operating Reserve for given location description: Get an entire days Real Time Hourly Operating Reserve for given location. Only the past [?] days are supported. tags: - realtimehourlyoperatingreserve responses: '200': description: a HourlyRtOperatingReservesElement containing the Real Time Hourly Operating Reserve. content: application/xml: schema: $ref: '#/components/schemas/HourlyRtOperatingReserves' application/json: schema: $ref: '#/components/schemas/HourlyRtOperatingReserves' '401': description: Unauthorized - HTTP Basic credentials from an ISO Express account are required. Verified by anonymous probe on 2026-07-27. x-evidence: source: https://webservices.iso-ne.com/docs/v1.1/rest.realtimehourlyoperatingreserve.day.day.location.locationId.html harvested: '2026-07-27' x-xml-element: HourlyRtOperatingReserves parameters: - name: day in: path required: true schema: type: string description: The day to retrieve data for (YYYYMMDD) - name: locationId in: path required: true schema: type: string description: The location id /realtimehourlyoperatingreserve/info: get: operationId: getRealtimehourlyoperatingreserveInfo summary: Get the Service Info for Real Time Hourly Operating Reserve description: Get the Service Info for Real Time Hourly Operating Reserve. tags: - realtimehourlyoperatingreserve responses: '200': description: the ServiceInfoElement for Real Time Hourly OperatingReserve. content: application/xml: schema: $ref: '#/components/schemas/ServiceInfo' application/json: schema: $ref: '#/components/schemas/ServiceInfo' '401': description: Unauthorized - HTTP Basic credentials from an ISO Express account are required. Verified by anonymous probe on 2026-07-27. x-evidence: source: https://webservices.iso-ne.com/docs/v1.1/rest.realtimehourlyoperatingreserve.info.html harvested: '2026-07-27' x-xml-element: ServiceInfo components: schemas: LocationRef: type: object properties: $: type: string description: Element text value (serialized as "$" in the JSON representation, per observed API responses). '@LocId': type: integer '@LocType': type: string enum: - NETWORK AREA - LOAD ZONE - NETWORK NODE - HUB - HUB NODE - RELIABILITY REGION - EXT. NODE - RESERVE ZONE - SYSTEM - INT. AREA - EXT. AREA - DISPATCH ZONE - CAPACITY ZONE - DRRAZ - DRR AGGREGATION ZONE required: - '@LocId' x-xsd-source: schemas/iso-new-england-web-services-ns0.xsd#type_LocationRef ServiceInfo: type: object properties: LatestBeginDate: type: string format: date-time CreationDate: type: string format: date-time required: - LatestBeginDate - CreationDate x-xsd-source: schemas/iso-new-england-web-services-ns0.xsd#type_ServiceInfo HourlyRtOperatingReserve: $ref: '#/components/schemas/OperatingReserve' x-xsd-source: schemas/iso-new-england-web-services-ns0.xsd#type_HourlyRtOperatingReserve OperatingReserve: type: object properties: BeginDate: type: string format: date-time Location: $ref: '#/components/schemas/LocationRef' Econimic: type: string enum: - Y - N - '-' Rmr: type: string enum: - Y - N - '-' Var: type: string enum: - Y - N - '-' RmrVar: type: string enum: - Y - N - '-' EconomicMw: type: number EconomicCost: type: number RmrMw: type: number RmrCost: type: number VarMw: type: number VarCost: type: number RmrVarMw: type: number RmrVarCost: type: number TotalMw: type: number TotalCost: type: number required: - BeginDate - Location x-xsd-source: schemas/iso-new-england-web-services-ns0.xsd#type_OperatingReserve HourlyRtOperatingReserves: type: object properties: HourlyRtOperatingReserve: type: array items: $ref: '#/components/schemas/HourlyRtOperatingReserve' x-xsd-source: schemas/iso-new-england-web-services-ns0.xsd#type_HourlyRtOperatingReserves securitySchemes: basicAuth: type: http scheme: basic description: HTTP Basic Authentication over SSL. Credentials come from a free, self-serve ISO Express account; ISO New England states that ISO Express account holders are automatically granted access to the public data feeds. See https://www.iso-ne.com/participate/applications-status-changes/access-software-systems