Aristocles Pty Ltd Market Volatility API

openapi: 3.2.0
info:
  title: Aristocles Data Market Volatility API
  description: 'Four Australian data APIs on one key — subscriptions, trade pricing, PBS drugs, and rental prices.


    ---


    ## Quick start


    **1. Get your API key** — register in one request:

    ```

    POST /v1/auth/register

    {"email": "you@example.com", "name": "Your Name"}

    ```

    Copy the `api_key` from the response.


    **2. Authenticate** — add your key to every request as a header:

    ```

    X-API-Key: ar_live_xxxxxxxxxxxx

    ```


    **3. Run the discovery endpoint** — returns all available slugs, example calls, and your account limits:

    ```

    GET /v1/discovery

    ```


    **4. Make your first call:**

    ```

    GET /v1/prices/netflix?country=AU

    GET /v1/trades/electrician/prices?state=NSW&country=AU

    GET /v1/pbs/metformin

    GET /v1/rental/VIC/Richmond

    ```


    ---


    ## Four data domains


    | Domain | Base path | What it covers |

    |---|---|---|

    | **Subscription Pricing** | `/v1/prices`, `/v1/services` | 50+ SaaS & streaming services: Netflix, Spotify, Adobe, etc. |

    | **Contractor Trades** | `/v1/trades` | Plumbers, electricians, painters across AU, US, UK, CA, NZ |

    | **PBS Drug Pricing** | `/v1/pbs` | 14,000+ medications on Australia''s Pharmaceutical Benefits Scheme |

    | **Rental Market** | `/v1/rental` | Median weekly rent by suburb and postcode across Australia |

    | **RBA Economic Data** | `/v1/rba` | Cash rate, AUD FX rates, CPI inflation, mortgage rates, credit aggregates |


    ---


    ## MCP Server


    All four data domains are also available as MCP tools at:

    ```

    https://api.aristocles.com.au/mcp/

    ```

    Connect any MCP-compatible AI agent (Claude, GPT, Gemini) to get structured data without writing API calls.'
  version: 2.1.0
tags:
- name: Market Volatility
  description: 'Daily history of the CBOE Volatility Index (VIX), which measures expected 30-day volatility of the S&P 500 implied by options prices. Fintech startups, trading bots, risk dashboards and AI finance agents use it to gauge market stress and backtest strategies. Source: VIX data from Cboe Global Markets, packaged by the Open Knowledge Foundation datasets project. Licence: ODC-PDDL-1.0. Base path: /v1/data/stock-market-volatility-index. Requires an API key (X-API-Key).'
paths:
  /v1/data/stock-market-volatility-index:
    get:
      tags:
      - Market Volatility
      summary: List Stock Market Volatility Index records
      description: 'List Stock Market Volatility Index records with optional filters and pagination.


        **Source:** VIX data from Cboe Global Markets, packaged by the Open Knowledge Foundation datasets project (ODC-PDDL-1.0).


        **Fields returned:**

        - `date` (date) — Trading date

        - `open` (float) — Opening index value

        - `high` (float) — Intraday high

        - `low` (float) — Intraday low

        - `close` (float) — Closing index value


        **Example:** `GET /v1/data/stock-market-volatility-index?limit=10&date=2026-01-01`'
      operationId: list_endpoint_v1_data_stock_market_volatility_index_get
      parameters:
      - name: limit
        in: query
        required: false
        schema:
          type: integer
          maximum: 100
          minimum: 1
          description: Max records to return (1-100).
          default: 25
          title: Limit
        description: Max records to return (1-100).
      - name: offset
        in: query
        required: false
        schema:
          type: integer
          minimum: 0
          description: Records to skip, for pagination.
          default: 0
          title: Offset
        description: Records to skip, for pagination.
      - name: date
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          description: Trading date
          examples:
          - '2026-01-01'
          title: Date
        description: Trading date
      - name: X-API-Key
        in: header
        required: true
        schema:
          type: string
          title: X-Api-Key
      responses:
        '200':
          description: A page of Stock Market Volatility Index records with pagination metadata.
          content:
            application/json:
              schema: {}
              example:
                data:
                  items:
                  - date: '2026-01-01'
                    open: 4.2
                    high: 4.2
                    low: 4.2
                    close: 4.2
                  total: 1
                  limit: 25
                  offset: 0
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /v1/data/stock-market-volatility-index/search:
    get:
      tags:
      - Market Volatility
      summary: Search Stock Market Volatility Index by date
      description: 'Search Stock Market Volatility Index records by `date` (partial, case-insensitive).


        **Example:** `GET /v1/data/stock-market-volatility-index/search?q=202`'
      operationId: search_endpoint_v1_data_stock_market_volatility_index_search_get
      parameters:
      - name: q
        in: query
        required: true
        schema:
          type: string
          minLength: 2
          maxLength: 100
          description: Case-insensitive partial match on date.
          examples:
          - '202'
          title: Q
        description: Case-insensitive partial match on date.
      - name: limit
        in: query
        required: false
        schema:
          type: integer
          maximum: 100
          minimum: 1
          description: Max records to return (1-100).
          default: 25
          title: Limit
        description: Max records to return (1-100).
      - name: X-API-Key
        in: header
        required: true
        schema:
          type: string
          title: X-Api-Key
      responses:
        '200':
          description: Matching Stock Market Volatility Index records.
          content:
            application/json:
              schema: {}
              example:
                data:
                  items:
                  - date: '2026-01-01'
                    open: 4.2
                    high: 4.2
                    low: 4.2
                    close: 4.2
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /v1/data/stock-market-volatility-index/{key}:
    get:
      tags:
      - Market Volatility
      summary: Get one Stock Market Volatility Index record by date
      description: 'Fetch a single Stock Market Volatility Index record by its `date`.


        **Example:** `GET /v1/data/stock-market-volatility-index/2026-01-01`'
      operationId: get_endpoint_v1_data_stock_market_volatility_index__key__get
      parameters:
      - name: key
        in: path
        required: true
        schema:
          type: string
          description: The date value to look up (case-insensitive).
          examples:
          - '2026-01-01'
          title: Key
        description: The date value to look up (case-insensitive).
      - name: X-API-Key
        in: header
        required: true
        schema:
          type: string
          title: X-Api-Key
      responses:
        '200':
          description: A single Stock Market Volatility Index record.
          content:
            application/json:
              schema: {}
              example:
                data:
                  date: '2026-01-01'
                  open: 4.2
                  high: 4.2
                  low: 4.2
                  close: 4.2
        '404':
          content:
            application/json:
              example:
                error:
                  code: NOT_FOUND
                  message: No Stock Market Volatility Index record for '...'.
          description: Not Found
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
components:
  schemas:
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
            - type: string
            - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
        input:
          title: Input
        ctx:
          type: object
          title: Context
      type: object
      required:
      - loc
      - msg
      - type
      title: ValidationError
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError