get_game_probabilities

5 creditsStats + aggregationPOST /v1/get_game_probabilities

What the market thinks of a game: average implied and fair probability for the moneyline, spreads and totals

Use it when you want one number for what the market thinks of a game: the average implied and fair probability across books for the moneyline, each spread and each total.

Parameters

game_idstringrequired: Game id, e.g. 401859967.
snapshot_typeenum: opening | closingoptional: closing (default): each book's last pre-game price so far. opening: each book's first.
leagueenum: nba | wnba | ncaam | ncaaw | nbloptional: League. Defaults to nba. One of: nba, wnba, ncaam, ncaaw, nbl.

Notes

Over MCP, ask for it in plain English and the client calls get_game_probabilities itself. Point any MCP client at https://mcp.dunkapi.com/mcp?key=YOUR_API_KEY.
Each call costs 5 credits, taken before it runs and refunded if the server errors.
Not the call you need? Find the right call by what you are trying to answer.

Request

curl -X POST https://mcp.dunkapi.com/v1/get_game_probabilities \
  -H "Content-Type: application/json" \
  -H "x-api-key: YOUR_API_KEY" \
  -d '{
  "game_id": "401859967"
}'

Response

json

{
  "game_id": "401859967",
  "home_team": "SA",
  "away_team": "NY",
  "scheduled_start": "2026-06-14T00:30:00.000Z",
  "snapshot_type": "closing",
  "moneyline": {
    "books_used": 8,
    "fair_books": 8,
    "home": {
      "avg_implied_prob": 0.662,
      "fair_prob": 0.639
    },
    "away": {
      "avg_implied_prob": 0.373,
      "fair_prob": 0.361
    }
  },
  "spreads": [
    {
      "home_line": -5.5,
      "books_used": 8,
      "fair_books": 8,
      "home": {
        "avg_implied_prob": 0.517,
        "fair_prob": 0.497
      },
      "away": {
        "avg_implied_prob": 0.523,
        "fair_prob": 0.503
      }
    }
  ],
  "totals": [
    {
      "line": 215.5,
      "books_used": 4,
      "fair_books": 4,
      "over": {
        "avg_implied_prob": 0.534,
        "fair_prob": 0.507
      },
      "under": {
        "avg_implied_prob": 0.518,
        "fair_prob": 0.493
      }
    },
    {
      "line": 215,
      "books_used": 2,
      "fair_books": 2,
      "over": {
        "avg_implied_prob": 0.528,
        "fair_prob": 0.508
      },
      "under": {
        "avg_implied_prob": 0.512,
        "fair_prob": 0.492
      }
    },
    {
      "line": 216.5,
      "books_used": 2,
      "fair_books": 2,
      "over": {
        "avg_implied_prob": 0.512,
        "fair_prob": 0.493
      },
      "under": {
        "avg_implied_prob": 0.527,
        "fair_prob": 0.507
      }
    }
  ],
  "count": 5,
  "method": "avg_implied_prob averages each book's implied probability, margin included. fair_prob takes the margin out of each book's two prices for the same line, proportionally, then averages. Only identical lines are combined."
}