curl --request GET \
  --url https://api-v2.polyrouter.io/list-futures \
  --header 'X-API-Key: <api-key>'

{
  "data": {
    "futures": [
      {
        "id": "nfl_superbowl_2025",
        "future_name": "Super Bowl LIX Winner",
        "league": "nfl",
        "season": 2024,
        "future_type": "championship",
        "category": "team",
        "platform_markets": {
          "polymarket": {
            "market_id": "<string>",
            "clob_token_ids": [
              "<string>"
            ]
          },
          "kalshi": {
            "event_ticker": "<string>"
          },
          "prophetx": {
            "tournament_id": "<string>"
          },
          "novig": {
            "market_slug": "<string>"
          },
          "sxbet": {
            "league_id": 123
          }
        },
        "metadata": {
          "deadline": "<string>",
          "description": "<string>",
          "eligible_teams": [
            "<string>"
          ]
        }
      }
    ]
  },
  "meta": {
    "platforms_queried": [
      "polymarket",
      "kalshi",
      "prophetx"
    ],
    "request_time": 250,
    "data_freshness": "2025-01-01T00:00:00.000Z",
    "platform_errors": {}
  }
}