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

# Whale Trades

> Large trades across all markets. Filter by minimum size, platform, and time range.



## OpenAPI

````yaml GET /v1/whales
openapi: 3.1.0
info:
  title: Arbiter
  description: >-
    Unified prediction market API. Aggregates Polymarket and Kalshi into a
    single interface with normalized data, historical trades, OHLCV candles,
    orderbook snapshots, and real-time WebSocket streaming.
  version: 1.0.0
servers: []
security: []
tags:
  - name: Markets
    description: Browse, search, and retrieve prediction markets across all platforms.
  - name: Market Data
    description: Prices, orderbooks, trades, and OHLCV candles for individual markets.
  - name: Events
    description: Markets grouped by real-world events (elections, sports, etc.).
  - name: Cross-Platform
    description: Find the same event across Polymarket and Kalshi.
  - name: Sports
    description: Browse prediction markets by sport and date.
  - name: Wallets
    description: 'Wallet analytics: profile, trades, positions, PnL, activity (Polymarket).'
  - name: Polymarket Native
    description: Raw Polymarket data with platform-specific fields.
  - name: Kalshi Native
    description: Raw Kalshi data with platform-specific fields.
  - name: Whales
    description: Track large trades across all prediction markets.
  - name: Webhooks
    description: Subscribe to events via HTTP POST — trades, whale alerts, price changes.
  - name: WebSocket
    description: Real-time streaming of trades, prices, and orderbook updates.
  - name: Auth
    description: Developer account management and API key authentication.
  - name: System
    description: Health checks and system statistics.
paths:
  /v1/whales:
    get:
      tags:
        - Whales
      summary: Whale Trades
      description: >-
        Large trades across all markets. Filter by minimum size, platform, and
        time range.
      operationId: get_whale_trades_v1_whales_get
      parameters:
        - name: min_size
          in: query
          required: false
          schema:
            type: number
            description: Minimum trade size in USD
            default: 500
            title: Min Size
          description: Minimum trade size in USD
        - name: platform
          in: query
          required: false
          schema:
            anyOf:
              - type: string
              - type: 'null'
            description: 'Filter by platform: polymarket, kalshi'
            title: Platform
          description: 'Filter by platform: polymarket, kalshi'
        - name: market_id
          in: query
          required: false
          schema:
            anyOf:
              - type: string
              - type: 'null'
            description: Filter by market ID
            title: Market Id
          description: Filter by market ID
        - name: limit
          in: query
          required: false
          schema:
            type: integer
            maximum: 200
            minimum: 1
            default: 50
            title: Limit
        - name: cursor
          in: query
          required: false
          schema:
            anyOf:
              - type: string
              - type: 'null'
            description: Pagination cursor (timestamp_ms)
            title: Cursor
          description: Pagination cursor (timestamp_ms)
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TradesResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
components:
  schemas:
    TradesResponse:
      properties:
        market_id:
          type: string
          title: Market Id
        trades:
          items:
            $ref: '#/components/schemas/Trade'
          type: array
          title: Trades
        cursor:
          anyOf:
            - type: string
            - type: 'null'
          title: Cursor
        has_more:
          type: boolean
          title: Has More
          default: false
      type: object
      required:
        - market_id
        - trades
      title: TradesResponse
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    Trade:
      properties:
        id:
          type: string
          title: Id
        market_id:
          type: string
          title: Market Id
        platform:
          $ref: '#/components/schemas/Platform'
        price:
          type: number
          title: Price
        size:
          type: number
          title: Size
        side:
          type: string
          title: Side
        timestamp_ms:
          type: integer
          title: Timestamp Ms
        native_trade_id:
          anyOf:
            - type: string
            - type: 'null'
          title: Native Trade Id
        maker:
          anyOf:
            - type: string
            - type: 'null'
          title: Maker
        taker:
          anyOf:
            - type: string
            - type: 'null'
          title: Taker
        tx_hash:
          anyOf:
            - type: string
            - type: 'null'
          title: Tx Hash
      type: object
      required:
        - id
        - market_id
        - platform
        - price
        - size
        - side
        - timestamp_ms
      title: Trade
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
              - type: string
              - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
      type: object
      required:
        - loc
        - msg
        - type
      title: ValidationError
    Platform:
      type: string
      enum:
        - polymarket
        - kalshi
      title: Platform

````