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

# Event/sports milestones



## OpenAPI

````yaml /prediction-markets/openapi.json get /v1/milestones
openapi: 3.1.0
info:
  title: Prediction Market API (Beta)
  description: >-
    Unified **beta** prediction market API for Kalshi and Polymarket — markets,
    events, full historical trades and candlesticks, orderbooks, crypto up/down
    windows, and Polymarket wallet analytics. Read/market-data only.


    **Auth:** pass your Data API key in the `x-api-key` header.


    **Conventions:** response bodies use camelCase. Query params are snake_case
    (camelCase aliases accepted where noted).


    **Caching:** SWR endpoints may set `X-Cache` (`HIT` | `HIT-STALE` | `MISS`).
    Busy backends may return `503` with `SERVICE_BUSY`.


    **Realtime:** join `pm:*` rooms on
    `wss://datastream.solanatracker.io/{apiKey}` (same Datastream hub as other
    products — see Datastream → Prediction Markets).
  license:
    name: ''
  version: 0.1.0
servers:
  - url: https://prediction-market-api.solanatracker.io
    description: Public beta
security:
  - apiKey: []
tags:
  - name: Exchange
    description: Exchange status
  - name: Events
    description: >-
      Cross-exchange event groupings (Kalshi event_ticker, Polymarket Gamma
      grouped/negRisk events). Includes metadata: image, icon, description,
      tags, and nested markets with groupItemTitle.
  - name: Crypto
    description: >-
      Polymarket crypto up/down (Chainlink) Price to Beat, final price, chart
      history, and series windows.
  - name: Meta
    description: Categories, series, sports, live data
  - name: Markets
    description: Market data, orderbooks, candles
  - name: Trades
    description: Trade feeds
  - name: Accounts
    description: Polymarket wallet analytics (FIFO PnL)
  - name: Leaderboard
    description: Top wallet PnL rankings (Polymarket; Kalshi has no public wallets)
  - name: Stats
    description: Platform statistics
paths:
  /v1/milestones:
    get:
      tags:
        - Meta
      summary: Event/sports milestones
      operationId: list_milestones_path
      parameters:
        - name: exchange
          in: query
          description: kalshi, polymarket, or omit for both
          required: false
          schema:
            type: string
        - name: sport
          in: query
          description: Optional sport/category filter
          required: false
          schema:
            type: string
        - name: limit
          in: query
          description: Max results (default 50)
          required: false
          schema:
            type: integer
            format: int64
            minimum: 0
      responses:
        '200':
          description: Upcoming milestones
components:
  securitySchemes:
    apiKey:
      type: apiKey
      in: header
      name: x-api-key
      description: Solana Tracker Data API key

````