openapi: 3.2.0
info:
  title: 0xArchive Lighter - Instruments 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: Lighter - Instruments
  description: Lighter available trading instruments and their specifications.
paths:
  /v1/lighter/instruments:
    get:
      tags:
      - Lighter - Instruments
      summary: List Lighter instruments
      description: Get all available Lighter trading instruments with their specifications. Returns `LighterInstrument` objects which include fees, market IDs, and minimum order amounts.
      operationId: listLighterInstruments
      responses:
        '200':
          description: List of Lighter instruments
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponseLighterInstrumentArray'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/RateLimited'
  /v1/lighter/instruments/{symbol}:
    get:
      tags:
      - Lighter - Instruments
      summary: Get Lighter instrument
      description: Get details for a specific Lighter trading instrument. Returns a `LighterInstrument` object which includes fees, market ID, and minimum order amounts.
      operationId: getLighterInstrument
      parameters:
      - name: symbol
        in: path
        required: true
        schema:
          type: string
          example: ETH
        description: Trading pair symbol (e.g., ETH, BTC)
        example: ETH
      responses:
        '200':
          description: Lighter instrument details
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponseLighterInstrument'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
        '429':
          $ref: '#/components/responses/RateLimited'
components:
  schemas:
    ApiMeta:
      type: object
      description: Response metadata
      properties:
        count:
          type: integer
          description: Number of records returned
        next_cursor:
          type:
          - string
          - 'null'
          description: Cursor for pagination (timestamp). Use this value as the `cursor` parameter to fetch the next page of results.
        request_id:
          type: string
          format: uuid
          description: Unique request ID for support
        coverage_from:
          type: string
          format: date-time
          description: Earliest coverage for the requested symbol and data type. Present only when the requested window ends before coverage begins.
        notice:
          type: string
          description: Human-readable advisory about the response. Currently used when the requested window ends before coverage begins for the symbol; may carry other advisories in future.
    ApiResponseLighterInstrumentArray:
      type: object
      properties:
        success:
          type: boolean
          example: true
        data:
          type: array
          items:
            $ref: '#/components/schemas/LighterInstrument'
        meta:
          $ref: '#/components/schemas/ApiMeta'
    LighterInstrument:
      type: object
      description: Trading instrument specification (Lighter). Different schema from Hyperliquid Instrument.
      required:
      - symbol
      - market_id
      - market_type
      - status
      - taker_fee
      - maker_fee
      - liquidation_fee
      - min_base_amount
      - min_quote_amount
      - size_decimals
      - price_decimals
      - quote_decimals
      - is_active
      properties:
        symbol:
          type: string
          description: Instrument symbol
          example: ETH
        market_id:
          type: integer
          description: Unique market identifier
          example: 0
        market_type:
          type: string
          description: Type of market
          enum:
          - perp
          - spot
          example: perp
        status:
          type: string
          description: Market status
          enum:
          - active
          - inactive
          - delisted
          example: active
        taker_fee:
          type: number
          description: Taker fee rate (e.g., 0.0004 = 0.04%)
          example: 0.0004
        maker_fee:
          type: number
          description: Maker fee rate (can be negative for rebates)
          example: 0.0001
        liquidation_fee:
          type: number
          description: Liquidation fee rate
          example: 0.005
        min_base_amount:
          type: number
          description: Minimum order size in base currency
          example: 0.001
        min_quote_amount:
          type: number
          description: Minimum order value in quote currency
          example: 1
        size_decimals:
          type: integer
          description: Size decimal precision
          example: 4
        price_decimals:
          type: integer
          description: Price decimal precision
          example: 2
        quote_decimals:
          type: integer
          description: Quote currency decimal precision
          example: 6
        is_active:
          type: boolean
          description: Whether the instrument is currently tradeable
          example: true
    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
    ApiResponseLighterInstrument:
      type: object
      properties:
        success:
          type: boolean
          example: true
        data:
          $ref: '#/components/schemas/LighterInstrument'
        meta:
          $ref: '#/components/schemas/ApiMeta'
  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
    NotFound:
      description: Resource not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            code: 404
            error: Resource not found
  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.