openapi: 3.0.3
info:
  title: Barchart OnDemand Commodities & Agriculture History API
  description: 'The Barchart OnDemand API is a commercially licensed market-data and commodity-data service hosted at https://ondemand.websol.barchart.com. It exposes a broad catalog of REST endpoints for quotes, historical time series, reference/instrument metadata, futures and options, fundamentals, corporate actions, cryptocurrencies, physical-commodity and agricultural data, technicals, news, and weather. Every call is authenticated with an `apikey` query parameter issued by Barchart, and each endpoint responds in JSON, XML, or CSV selected by the path suffix (for example `/getQuote.json`, `/getQuote.xml`, `/getQuote.csv`); GET, POST, and SOAP transports are supported.

    ACCESS NOTE - Barchart OnDemand is subscription and enterprise gated. The endpoint names, HTTP method, `apikey` auth, format suffixes, and the documented request parameters below are taken from Barchart''s public OnDemand documentation and are accurate. Because request quotas, the exact field catalogs, and full response payloads are entitlement-specific and not publicly published in machine-readable form, the response schemas in this document are HONESTLY MODELED (endpointsModeled) rather than captured from live authenticated responses. Field sets returned depend on your Barchart data license.'
  version: '1.0'
  contact:
    name: Barchart OnDemand
    url: https://www.barchart.com/ondemand/api
  x-access-model: subscription-and-enterprise (apikey required; contact sales / free trial)
  x-endpoints-modeled: true
servers:
- url: https://ondemand.websol.barchart.com
  description: Barchart OnDemand production host
security:
- apiKeyQuery: []
tags:
- name: History
  description: Historical tick, minute, and end-of-day time series.
paths:
  /getHistory.json:
    get:
      operationId: getHistory
      tags:
      - History
      summary: Get historical time series
      description: Historical time series (tick, minute bars, or end-of-day) for stocks, indexes, mutual funds, ETFs, futures, forex, or crypto, with daily, weekly, monthly, quarterly, yearly and nearest/continuation variants.
      parameters:
      - $ref: '#/components/parameters/ApiKey'
      - name: symbol
        in: query
        required: true
        description: A single instrument symbol.
        schema:
          type: string
        example: IBM
      - name: type
        in: query
        required: true
        description: Time series type, e.g. ticks, minutes, nearbyMinutes, formTMinutes, daily, dailyNearest, dailyContinue, weekly, monthly, quarterly, yearly (and their Nearest/Continue variants).
        schema:
          type: string
          example: daily
      - name: startDate
        in: query
        required: false
        description: Inclusive start date/time (YYYYMMDD or YYYYMMDDHHmmss).
        schema:
          type: string
      - name: endDate
        in: query
        required: false
        description: Inclusive end date/time.
        schema:
          type: string
      - name: maxRecords
        in: query
        required: false
        description: Maximum number of records to return.
        schema:
          type: integer
      responses:
        '200':
          $ref: '#/components/responses/HistoryResults'
        '401':
          $ref: '#/components/responses/Unauthorized'
components:
  parameters:
    ApiKey:
      name: apikey
      in: query
      required: true
      description: Barchart-issued API key.
      schema:
        type: string
  responses:
    Unauthorized:
      description: Missing, invalid, or unentitled API key.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Status'
    HistoryResults:
      description: A status envelope plus an array of historical bars (modeled).
      content:
        application/json:
          schema:
            type: object
            properties:
              status:
                $ref: '#/components/schemas/Status'
              results:
                type: array
                items:
                  $ref: '#/components/schemas/Bar'
  schemas:
    Bar:
      type: object
      description: Modeled historical bar.
      properties:
        symbol:
          type: string
        timestamp:
          type: string
          format: date-time
        tradingDay:
          type: string
        open:
          type: number
        high:
          type: number
        low:
          type: number
        close:
          type: number
        volume:
          type: integer
        openInterest:
          type: integer
      additionalProperties: true
    Status:
      type: object
      description: Standard Barchart OnDemand status envelope.
      properties:
        code:
          type: integer
          example: 200
        message:
          type: string
          example: Success.
  securitySchemes:
    apiKeyQuery:
      type: apiKey
      in: query
      name: apikey
      description: Barchart-issued API key passed as the `apikey` query parameter on every request (for example `?apikey=YOUR_API_KEY`). Keys are provisioned with a Barchart OnDemand subscription or enterprise agreement.