How do I get first five innings MLB odds history in Python?

The call

game_id comes from get_games. Also the first 5 innings winner and run line.

import requests
import pandas as pd

API_KEY = "YOUR_API_KEY"

resp = requests.post(
    "https://mcp.fastballapi.com/v1/get_market_odds",
    headers={"x-api-key": API_KEY},
    json={
        "game_id": "401696176",
        "market": "totals_1st_5_innings",
    },
    timeout=60,
)
resp.raise_for_status()
data = resp.json()["data"]

books = pd.DataFrame([
    {"book": b["bookmaker"], **{f'{o["outcome"]} {o["point"] if o["point"] is not None else ""}'.strip(): o["price"] for o in b["closing"]}}
    for b in data["books"]
])
print(data["label"])
print(books)

Replace YOUR_API_KEY with a key from your dashboard. Python needs requests and pandas (pip install requests pandas). JavaScript runs on Node 18 or newer, or in the browser.

Or use the official client: pip install fastballapi

What comes back

The data object of the response, trimmed to the first rows. Every field is real output from the run above.

{
  "game_id": "401696176",
  "market": "totals_1st_5_innings",
  "label": "first 5 innings total runs",
  "scheduled_start": "2025-07-01T01:40:00.000Z",
  "books": [
    {
      "bookmaker": "betmgm",
      "opening": [
        {
          "outcome": "Over",
          "point": 3.5,
          "price": -118
        },
        {
          "outcome": "Under",
          "point": 3.5,
          "price": -110
        }
      ],
      "opening_captured_at": "2025-07-01T01:10:38.000Z",
      "closing": [
        {
          "outcome": "Over",
          "point": 3.5,
          "price": -118
        },
        {
          "outcome": "Under",
          "point": 3.5,
          "price": -110
        }
      ],
      "closing_captured_at": "2025-07-01T01:10:38.000Z",
      "minutes_before_start": 29.4
    },
    "...4 more"
  ],
  "count": 6
}

What to do next

• get_plate_appearances (10 credits). Every plate appearance, to settle the first 5 innings.
• get_odds (5 credits). Each book's full-game moneyline, run line and total.

More guides

• Where do I get MLB pitch-by-pitch data for a model?
• How do I get a pitcher's pitch mix and whiff rate in Python?
• How do I build an MLB spray chart in Python?
• How do I find MLB teams that over- or underperformed their run differential?

The same guide for other sports

• PuckAPI: How do I get NHL opening and closing odds by sportsbook in Python?
• EndzoneAPI: How do I backtest NFL closing lines in Python?
• FighterAPI: How do I compare UFC closing odds with fight results in Python?
• StrikerAPI: How do I get Premier League odds from every sportsbook with the results?
• DunkAPI: How do I backtest NBA closing lines in Python?
• AcesAPI: How do I compare ATP closing odds with the result and Elo in Python?
• BirdieAPI: How do I turn golf major winner odds into probabilities in Python?