> ## Documentation Index
> Fetch the complete documentation index at: https://docs.parlayx.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Get Price Ladder

> Returns every price ProphetX accepts, in dollars per share.



## OpenAPI

````yaml /openapi/v1.json get /v1/prophetx/ladder
openapi: 3.0.0
info:
  title: ParlayX API
  version: 1.0.0
  description: Aggregated prediction-market trading API
servers:
  - url: https://api.parlayx.com
security: []
tags:
  - name: Authentication
    description: Confirm your signing and read the server clock.
  - name: Discovery
    description: Browse sports, competitions, events, and markets.
  - name: Polymarket
    description: Submit and manage orders on Polymarket outcomes.
  - name: Kalshi
    description: Submit and manage orders on Kalshi markets.
  - name: ProphetX
    description: Submit and manage orders on ProphetX strikes.
  - name: Limitless
    description: Discover and trade Limitless markets.
paths:
  /v1/prophetx/ladder:
    get:
      tags:
        - ProphetX
      summary: Get Price Ladder
      description: Returns every price ProphetX accepts, in dollars per share.
      operationId: getProphetXLadder
      parameters:
        - name: PX-Key-Id
          in: header
          required: true
          schema:
            type: string
          description: The key id issued for your signing keypair.
        - name: PX-Timestamp
          in: header
          required: true
          schema:
            type: string
          description: >-
            Unix seconds at signing, valid within 30 seconds of the server
            clock.
        - name: PX-Signature
          in: header
          required: true
          schema:
            type: string
          description: Ed25519 signature of the request
        - name: PX-Content-Sha256
          in: header
          required: true
          schema:
            type: string
          description: >-
            Hex SHA-256 of the request body, or the SHA-256 of the empty string
            when there is no body.
      responses:
        '200':
          description: The venue's current ladder
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ProphetXLadder'
        '401':
          description: The request was not authenticated
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AuthError'
        '403':
          description: The key is not permitted to perform this action
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AuthError'
        '404':
          description: >-
            The pod has no ProphetX account connected or its connection needs
            reconnecting.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiError'
        '429':
          description: >-
            Ladder reads for this account are temporarily rate-limited; retry
            after the Retry-After interval
          content:
            application/json:
              schema:
                oneOf:
                  - $ref: '#/components/schemas/ApiError'
                  - $ref: '#/components/schemas/AuthError'
        '500':
          description: Internal error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiError'
        '503':
          description: The ladder could not be read from the venue; retry
          content:
            application/json:
              schema:
                oneOf:
                  - $ref: '#/components/schemas/ApiError'
                  - $ref: '#/components/schemas/AuthError'
components:
  schemas:
    ProphetXLadder:
      type: object
      properties:
        prices:
          type: array
          items:
            type: string
          description: >-
            Every price ProphetX accepts, ascending, in dollars per share from 0
            to 1 at six decimal places.
          example:
            - '0.003984'
            - '0.327869'
            - '0.333333'
            - '0.500000'
            - '0.996016'
        source:
          type: string
          enum:
            - venue
            - fallback
          description: >-
            Whether these prices were read from the venue or served from the
            last known set.
          example: venue
      required:
        - prices
        - source
    AuthError:
      type: object
      properties:
        error:
          type: object
          properties:
            code:
              $ref: '#/components/schemas/AuthErrorCode'
            message:
              type: string
              description: Plain-text explanation of the error.
          required:
            - code
            - message
      required:
        - error
      title: Auth Error
    ApiError:
      type: object
      properties:
        error:
          type: object
          properties:
            code:
              $ref: '#/components/schemas/ApiErrorCode'
            message:
              type: string
              description: Plain-text explanation of the error.
            orderId:
              type: string
              format: uuid
              description: >-
                The affected order, present only on
                ORDER_RECONCILIATION_REQUIRED; read it back to determine whether
                it reached the venue.
          required:
            - code
            - message
      required:
        - error
      title: API Error
    AuthErrorCode:
      type: string
      enum:
        - UNAUTHORIZED
        - BAD_CONTENT_HASH
        - FORBIDDEN
        - RATE_LIMITED
        - AUTH_UNAVAILABLE
      description: Stable identifier for the error category.
    ApiErrorCode:
      type: string
      enum:
        - INVALID_REQUEST
        - NOT_FOUND
        - INSUFFICIENT_BALANCE
        - IDEMPOTENCY_CONFLICT
        - ORDER_NOT_CANCELLABLE
        - ORDER_RECONCILIATION_REQUIRED
        - RATE_LIMITED
        - INTERNAL_ERROR
      description: Stable identifier for the error category.

````

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