openapi: 3.2.0
info:
  title: ISO New England Web Services API v1.1 Dayaheadhourlyoperatingreserve 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: dayaheadhourlyoperatingreserve
  description: 6 path template(s) under /dayaheadhourlyoperatingreserve in the published ISO New England Web Services API v1.1 documentation.
paths:
  /dayaheadhourlyoperatingreserve:
    get:
      operationId: getDayaheadhourlyoperatingreserve
      summary: Default resource
      description: Default resource. Redirects to Load Forecast Info .
      tags:
      - dayaheadhourlyoperatingreserve
      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.dayaheadhourlyoperatingreserve.html
        harvested: '2026-07-27'
  /dayaheadhourlyoperatingreserve/current/all:
    get:
      operationId: getDayaheadhourlyoperatingreserveCurrentAll
      summary: 'Get the current Day Ahead Hourly Operating Reserves '
      description: Get the current Day Ahead Hourly Operating Reserves .
      tags:
      - dayaheadhourlyoperatingreserve
      responses:
        '200':
          description: a HourlyDaOperatingReservesElement containing the current Day Ahead Hourly Operating Reserves.
          content:
            application/xml:
              schema:
                $ref: '#/components/schemas/HourlyDaOperatingReserves'
            application/json:
              schema:
                $ref: '#/components/schemas/HourlyDaOperatingReserves'
        '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.dayaheadhourlyoperatingreserve.current.all.html
        harvested: '2026-07-27'
      x-xml-element: HourlyDaOperatingReserves
  /dayaheadhourlyoperatingreserve/current/location/{locationId}:
    get:
      operationId: getDayaheadhourlyoperatingreserveCurrentLocationByLocationId
      summary: Get the current Day Ahead Hourly Operating Reserve for a given location
      description: Get the current Day Ahead Hourly Operating Reserve for a given location.
      tags:
      - dayaheadhourlyoperatingreserve
      responses:
        '200':
          description: a HourlyDaOperatingReserveElement containing the current Real Time Hourly Operating Reserve for the given location.
          content:
            application/xml:
              schema:
                $ref: '#/components/schemas/HourlyDaOperatingReserve'
            application/json:
              schema:
                $ref: '#/components/schemas/HourlyDaOperatingReserve'
        '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.dayaheadhourlyoperatingreserve.current.location.locationId.html
        harvested: '2026-07-27'
      x-xml-element: HourlyDaOperatingReserve
      parameters:
      - name: locationId
        in: path
        required: true
        schema:
          type: string
        description: The location id
  /dayaheadhourlyoperatingreserve/current/locationType/{locationType}:
    get:
      operationId: getDayaheadhourlyoperatingreserveCurrentLocationTypeByLocationType
      summary: Get the current Day Ahead Hourly Operating Reserve for a given location type
      description: Get the current Day Ahead Hourly Operating Reserve for a given location type.
      tags:
      - dayaheadhourlyoperatingreserve
      responses:
        '200':
          description: a HourlyDaOperatingReservesElement containing the current Day Ahead Hourly Operating Reserve for the given location type.
          content:
            application/xml:
              schema:
                $ref: '#/components/schemas/HourlyDaOperatingReserves'
            application/json:
              schema:
                $ref: '#/components/schemas/HourlyDaOperatingReserves'
        '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.dayaheadhourlyoperatingreserve.current.locationType.locationType.html
        harvested: '2026-07-27'
      x-xml-element: HourlyDaOperatingReserves
      parameters:
      - name: locationType
        in: path
        required: true
        schema:
          type: string
        description: The locationType
  /dayaheadhourlyoperatingreserve/day/{day}/location/{locationId}:
    get:
      operationId: getDayaheadhourlyoperatingreserveDayByDayLocationByLocationId
      summary: Get an entire days Day Ahead Hourly Operating Reserve for given location
      description: Get an entire days Day Ahead Hourly Operating Reserve for given location. Only the past [?] days are supported.
      tags:
      - dayaheadhourlyoperatingreserve
      responses:
        '200':
          description: a HourlyDaOperatingReservesElement containing the Day Ahead Hourly Operating Reserve.
          content:
            application/xml:
              schema:
                $ref: '#/components/schemas/HourlyDaOperatingReserves'
            application/json:
              schema:
                $ref: '#/components/schemas/HourlyDaOperatingReserves'
        '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.dayaheadhourlyoperatingreserve.day.day.location.locationId.html
        harvested: '2026-07-27'
      x-xml-element: HourlyDaOperatingReserves
      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
  /dayaheadhourlyoperatingreserve/info:
    get:
      operationId: getDayaheadhourlyoperatingreserveInfo
      summary: Get the Service Info for Day Ahead Hourly Operating Reserve
      description: Get the Service Info for Day Ahead Hourly Operating Reserve.
      tags:
      - dayaheadhourlyoperatingreserve
      responses:
        '200':
          description: the ServiceInfoElement for Day Ahead 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.dayaheadhourlyoperatingreserve.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
    HourlyDaOperatingReserves:
      type: object
      properties:
        HourlyDaOperatingReserve:
          type: array
          items:
            $ref: '#/components/schemas/HourlyDaOperatingReserve'
      x-xsd-source: schemas/iso-new-england-web-services-ns0.xsd#type_HourlyDaOperatingReserves
    HourlyDaOperatingReserve:
      $ref: '#/components/schemas/OperatingReserve'
      x-xsd-source: schemas/iso-new-england-web-services-ns0.xsd#type_HourlyDaOperatingReserve
    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
  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