openapi: 3.2.0
info:
  title: Cheniere LNG Connection — Pipeline Informational Postings…
  version: '2026-09-06'
  summary: The JSON API behind Cheniere's LNG Connection informational-postings site for its FERC-regulated interstate natural gas pipelines.
  description: Cheniere Energy publishes the FERC-mandated informational postings for its interstate natural gas pipelines — Cheniere Creole Trail Pipeline, L.P.
  contact:
    name: Cheniere Pipeline Operations
    url: https://www.cheniere.com/about/where-we-work/creole-trail-pipeline
  x-derived-by: API Evangelist enrichment pipeline (local-v3)
  x-generated-from: provider client bundle string literals + live anonymous response probes
  x-not-published-by-provider: true
servers:
- url: https://lngconnectionapi.cheniere.com
  description: Production. Referenced as the prod baseUrl in the provider's own client bundle.
security: []
tags:
- name: Transactional Reporting
  description: Firm, interruptible and capacity-release transactional reporting.
paths:
  /api/Transactional/GetFirm:
    get:
      operationId: getFirmTransactionalReport
      summary: Firm transactional reporting
      tags:
      - Transactional Reporting
      description: 'FERC 18 CFR 284.13(b) firm transportation transactional reporting: contract, shipper, affiliate indicator, rate charged vs maximum tariff rate, and per-location MDQ.'
      parameters:
      - name: tspNo
        in: query
        required: true
        schema:
          type: integer
        description: 'Transportation service provider (company) id. Observed values: 200 = Cheniere Creole Trail Pipeline, L.P. (DUNS 800742780, FERC CID C001506); 400 = Cheniere Corpus Christi Pipeline, L.P. (DUNS 079841991). 600 and 800 route in the client but returned no rows when probed.'
      - name: beginDate
        in: query
        required: true
        schema:
          type: string
        description: Begin gas day. Accepted as YYYY-MM-DD or M/D/YYYY.
      - name: endDate
        in: query
        required: true
        schema:
          type: string
        description: End gas day. Accepted as YYYY-MM-DD or M/D/YYYY.
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                allOf:
                - $ref: '#/components/schemas/ReportEnvelope'
                - type: object
                  properties:
                    report:
                      type: array
                      items:
                        $ref: '#/components/schemas/TransactionalReportRow'
        '404':
          description: 'Error. ASP.NET Web API envelope: {"message": "..."}.'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '500':
          description: 'Error. ASP.NET Web API envelope: {"message": "..."}.'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
      x-probed:
        url: https://lngconnectionapi.cheniere.com/api/Transactional/GetFirm?tspNo=200&beginDate=2026-09-01&endDate=2026-09-05
        status: 200
        date: '2026-09-06'
  /api/Transactional/GetInteruptible:
    get:
      operationId: getInterruptibleTransactionalReport
      summary: Interruptible transactional reporting
      tags:
      - Transactional Reporting
      description: Path spelling `GetInteruptible` is the provider's own (single 'r'); it is reproduced verbatim.
      parameters:
      - name: tspNo
        in: query
        required: true
        schema:
          type: integer
        description: 'Transportation service provider (company) id. Observed values: 200 = Cheniere Creole Trail Pipeline, L.P. (DUNS 800742780, FERC CID C001506); 400 = Cheniere Corpus Christi Pipeline, L.P. (DUNS 079841991). 600 and 800 route in the client but returned no rows when probed.'
      - name: beginDate
        in: query
        required: true
        schema:
          type: string
        description: Begin gas day. Accepted as YYYY-MM-DD or M/D/YYYY.
      - name: endDate
        in: query
        required: true
        schema:
          type: string
        description: End gas day. Accepted as YYYY-MM-DD or M/D/YYYY.
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                allOf:
                - $ref: '#/components/schemas/ReportEnvelope'
                - type: object
                  properties:
                    report:
                      type: array
                      items:
                        $ref: '#/components/schemas/TransactionalReportRow'
        '404':
          description: 'Error. ASP.NET Web API envelope: {"message": "..."}.'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '500':
          description: 'Error. ASP.NET Web API envelope: {"message": "..."}.'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
      x-probed:
        url: https://lngconnectionapi.cheniere.com/api/Transactional/GetInteruptible?tspNo=200&beginDate=2026-09-01&endDate=2026-09-05
        status: 200
        date: '2026-09-06'
  /api/Transactional/GetCapacityRelease:
    get:
      operationId: getCapacityReleaseReport
      summary: Capacity release transactional reporting
      tags:
      - Transactional Reporting
      description: Probed 2026-09-06 and returned HTTP 500 with the generic error envelope for tspNo 200 across a valid date range; the client also calls it with tspNo alone, which returned 404. Recorded as published-but-failing rather than absent.
      parameters:
      - name: tspNo
        in: query
        required: true
        schema:
          type: integer
        description: 'Transportation service provider (company) id. Observed values: 200 = Cheniere Creole Trail Pipeline, L.P. (DUNS 800742780, FERC CID C001506); 400 = Cheniere Corpus Christi Pipeline, L.P. (DUNS 079841991). 600 and 800 route in the client but returned no rows when probed.'
      - name: beginDate
        in: query
        required: true
        schema:
          type: string
        description: Begin gas day. Accepted as YYYY-MM-DD or M/D/YYYY.
      - name: endDate
        in: query
        required: true
        schema:
          type: string
        description: End gas day. Accepted as YYYY-MM-DD or M/D/YYYY.
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                allOf:
                - $ref: '#/components/schemas/ReportEnvelope'
                - type: object
                  properties:
                    report:
                      type: array
                      items:
                        $ref: '#/components/schemas/TransactionalReportRow'
        '404':
          description: 'Error. ASP.NET Web API envelope: {"message": "..."}.'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '500':
          description: 'Error. ASP.NET Web API envelope: {"message": "..."}.'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
      x-probed:
        url: https://lngconnectionapi.cheniere.com/api/Transactional/GetCapacityRelease?tspNo=200&beginDate=2026-09-01&endDate=2026-09-05
        status: 500
        date: '2026-09-06'
components:
  schemas:
    TransactionalReportRow:
      type: object
      description: 'Transactional reporting row (firm / interruptible / capacity release) per FERC 18 CFR 284.13(b): contract, shipper, rate and location detail.'
      properties:
        postDateTime:
          type: string
          format: date-time
        tspNo:
          type: integer
        tspName:
          type: string
        tspDuns:
          type: string
        contractHolder:
          type: string
        contractHolderName:
          type: string
        contractHolderProp:
          type: string
        serviceRequesterContract:
          type: string
        contractBeginDate:
          type: string
          format: date-time
        contractEndDate:
          type: string
          format: date-time
        contractStatus:
          type: string
        ctrMDQ:
          type: number
        affil:
          type: string
        rateCharged:
          type: number
        maxTariffRate:
          type: number
        rateSchedule:
          type: string
        resRateBasis:
          type: string
        rateID:
          type: string
        mktBasedRateInd:
          type: string
        ngtdRateInd:
          type: string
        surchgInd:
          type: integer
        locId:
          type: string
        ctrLocMDQ:
          type: number
        loc:
          type: string
        locPurpose:
          type: string
        locQTI:
          type: integer
    ReportEnvelope:
      type: object
      description: Common envelope returned by the dated report endpoints. `report` carries the rows; `beginDate`/`endDate` echo the requested gas-day range in M/D/YYYY.
      properties:
        report:
          type: array
          items:
            type: object
        beginDate:
          type: string
          description: Echo of the requested begin gas day, M/D/YYYY.
        endDate:
          type: string
          description: Echo of the requested end gas day, M/D/YYYY.
    Error:
      type: object
      description: 'ASP.NET Web API error envelope. Not RFC 9457 problem+json: a single `message` string, no `type`, `title` or `status` member.'
      properties:
        message:
          type: string
      required:
      - message
externalDocs:
  description: LNG Connection informational postings site
  url: https://lngconnection.cheniere.com/