0xArchive HIP-4 Outcomes - Candles API

openapi: 3.2.0
info:
  title: 0xArchive HIP-4 Outcomes - Candles API
  description: REST API for current and historical market data from Hyperliquid and Lighter. Hyperliquid coverage includes core perpetuals, Spot, HIP-3 builder perpetuals, and HIP-4 outcome markets. Coverage and access requirements vary by route. See https://docs.0xarchive.io/ for authentication, limits, and examples.
  version: 1.6.1
  termsOfService: https://0xarchive.io/terms
  contact:
    name: 0xArchive Support
    url: https://0xarchive.io
    email: support@0xarchive.io
  license:
    name: Proprietary
    url: https://0xarchive.io/terms
servers:
- url: https://api.0xarchive.io
  description: Production API
security:
- ApiKeyAuth: []
tags:
- name: HIP-4 Outcomes - Candles
  description: OHLCV candles for HIP-4 outcome sides. Prices are implied probabilities (0..1); quote_volume in USDH.
paths:
  /v1/hyperliquid/hip4/candles/{symbol}:
    get:
      tags:
      - HIP-4 Outcomes - Candles
      summary: Get HIP-4 OHLCV candles
      description: 'Historical OHLCV candle data for a HIP-4 outcome side, aggregated from archived HIP-4 trade data. Coverage begins 2026-05-02 (HIP-4 mainnet launch).


        **Note on HIP-4 prices:** HIP-4 prices are implied probabilities (0..1), not USD. `quote_volume` is denominated in USDH (the collateral). The OHLCV shape is identical to perp candles so SDKs work unchanged.


        **Available Intervals:** 1m, 5m, 15m, 30m, 1h, 4h, 1d, 1w


        **Pagination:** Use the `cursor` parameter with the value from the previous response''s `next_cursor`.'
      operationId: getHip4Candles
      parameters:
      - name: symbol
        in: path
        required: true
        description: HIP-4 coin id (numeric `0`, `1`, `10`, `11`, ...) where id = `10*outcome_id + side`. The `#`-prefixed form (`#0`, `#10`) is also accepted.
        schema:
          type: string
          example: '0'
        example: '0'
      - name: start
        in: query
        description: Start timestamp in Unix milliseconds. Defaults to 24h ago.
        schema:
          type: integer
          format: int64
      - name: end
        in: query
        description: End timestamp in Unix milliseconds. Defaults to now.
        schema:
          type: integer
          format: int64
      - name: interval
        in: query
        description: 'Candle interval (default: 1h)'
        schema:
          type: string
          enum:
          - 1m
          - 5m
          - 15m
          - 30m
          - 1h
          - 4h
          - 1d
          - 1w
          default: 1h
      - name: cursor
        in: query
        description: Cursor for pagination (use the value from previous response's `next_cursor`)
        schema:
          type: string
      - name: limit
        in: query
        description: 'Maximum number of results (default: 100, max: 1000)'
        schema:
          type: integer
          default: 100
          maximum: 1000
      security:
      - ApiKeyAuth: []
      responses:
        '200':
          description: List of OHLCV candles with cursor for next page
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponseCandleArray'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/RateLimited'
components:
  responses:
    Unauthorized:
      description: Authentication required
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            code: 401
            error: Missing or invalid API key. Provide X-API-Key header.
    BadRequest:
      description: Invalid request
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            code: 400
            error: 'Failed to deserialize query string: limit: invalid digit found in string'
            error_code: invalid_query_params
            request_id: 3f2a9c71-5b0e-4d68-9a4c-7e1d2b6f8a05
    RateLimited:
      description: Rate limit exceeded
      headers:
        X-RateLimit-Limit:
          schema:
            type: integer
          description: Requests per second limit
        X-RateLimit-Remaining:
          schema:
            type: integer
          description: Remaining requests this second
        X-RateLimit-Reset:
          schema:
            type: integer
          description: Unix timestamp when limit resets
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            code: 429
            error: Rate limit exceeded
  schemas:
    ApiResponseCandleArray:
      type: object
      description: API response containing an array of candle data
      properties:
        success:
          type: boolean
          example: true
        data:
          type: array
          items:
            $ref: '#/components/schemas/Candle'
        meta:
          type: object
          properties:
            count:
              type: integer
              description: Number of records returned
            next_cursor:
              type:
              - string
              - 'null'
              description: Cursor for pagination
    Error:
      type: object
      description: Error response
      properties:
        code:
          type: integer
          description: HTTP status code
        error:
          type: string
          description: Error message
        error_code:
          type: string
          description: 'Machine-readable error code. Common values: `invalid_query_params` (a query parameter failed to parse or validate) and `invalid_path_params` (a path parameter failed to parse). Other endpoint-specific codes exist; treat unknown codes as generic errors of the given HTTP status.'
        request_id:
          type: string
          format: uuid
          description: Unique request ID for support
    Candle:
      type: object
      description: OHLCV candle data
      required:
      - timestamp
      - open
      - high
      - low
      - close
      - volume
      properties:
        timestamp:
          type: string
          format: date-time
          description: Candle start timestamp (ISO 8601 UTC)
          example: '2026-01-01T12:00:00Z'
        open:
          type: number
          format: double
          description: Opening price
          example: 42500.5
        high:
          type: number
          format: double
          description: Highest price during interval
          example: 42750
        low:
          type: number
          format: double
          description: Lowest price during interval
          example: 42300.25
        close:
          type: number
          format: double
          description: Closing price
          example: 42650.75
        volume:
          type: number
          format: double
          description: Trading volume in base asset
          example: 1250.5
        quote_volume:
          type: number
          format: double
          description: Trading volume in quote asset (USD)
          example: 53187500
        trade_count:
          type: integer
          description: Number of trades in interval
          example: 4520
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: X-API-Key
      description: API key for authentication. Get yours at https://0xarchive.io/dashboard
externalDocs:
  description: 0xArchive Developer Docs
  url: https://docs.0xarchive.io/
x-0xarchive-docs-language-overlay:
  name: data-quality-supported-venue-language
  reason: Public OpenAPI language must describe supported venue-family coverage instead of broad exchange coverage.
  updated_at: '2026-05-24'
  remove_when: Public source OpenAPI uses supported venue-family wording for data-quality coverage and latency descriptions.
x-0xarchive-docs-overlay:
  name: hyperliquid-spot
  reason: Hyperliquid Spot routes are included in the local REST contract.
  source: live endpoint behavior and public CLI/MCP/Skill surface truth
  updated_at: '2026-05-08'
  remove_when: Public source contract includes the same Spot route family.