FanDuel API in Python

pip install requests
export FANDUEL_API_KEY="fd_..."

import os
import time
from datetime import datetime, timezone

import requests

BASE = "https://fanduelapi.com/api/v1"
SESSION = requests.Session()
SESSION.headers["Authorization"] = f"Bearer {os.environ['FANDUEL_API_KEY']}"


def get(path, **params):
    """GET one endpoint and return its data list, waiting out rate limits."""
    while True:
        r = SESSION.get(f"{BASE}{path}", params=params, timeout=10)
        if r.status_code == 429:
            time.sleep(int(r.headers.get("Retry-After", "5")))
            continue
        r.raise_for_status()
        return r.json()["data"]


def price(odds):
    """American odds as text. A suspended market can come back with no price."""
    return "off" if odds is None else f"{odds:+d}"

props = get("/props", sport="nba", stat="points")
for p in props:
    print(f"{p['player']:<26} {str(p['line']):>5}  over {price(p['over_american']):>5}  under {price(p['under_american']):>5}")

Luka Dončić                 33.5  over  -105  under  -115
Shai Gilgeous-Alexander     31.5  over  -120  under  -102
Giannis Antetokounmpo       29.5  over  -114  under  -106

# Move history is part of the Developer and Production plans.
history = sorted(get(f"/props/{props[0]['id']}/history"), key=lambda m: m["observed_at"])
opened, now = history[0], history[-1]
print(f"{props[0]['player']}: opened {opened['line']} at {opened['observed_at']}, "
      f"now {now['line']}, {len(history) - 1} moves")

{
  "data": [
    {
      "observed_at": "2026-11-05T14:02:00Z",
      "line": 3.5,
      "over_american": 105,
      "under_american": -135,
      "over_decimal": 2.05,
      "under_decimal": 1.741
    },
    {
      "observed_at": "2026-11-05T16:44:00Z",
      "line": 3.5,
      "over_american": -102,
      "under_american": -120,
      "over_decimal": 1.98,
      "under_decimal": 1.833
    },
    {
      "observed_at": "2026-11-05T19:12:00Z",
      "line": 3.5,
      "over_american": -118,
      "under_american": -104,
      "over_decimal": 1.847,
      "under_decimal": 1.962
    },
    {
      "observed_at": "2026-11-05T22:20:00Z",
      "line": 2.5,
      "over_american": -165,
      "under_american": 130,
      "over_decimal": 1.606,
      "under_decimal": 2.3
    }
  ]
}

# Seconds between polls. One poll is one request, so pick the interval your plan's monthly quota allows:
#   Free: 28800
#   Developer: 300
#   Production: 60
#   Scale: 20
POLL_SECONDS = 28800


def utc_now():
    return datetime.now(timezone.utc).strftime("%Y-%m-%dT%H:%M:%SZ")


since = utc_now()
while True:
    time.sleep(POLL_SECONDS)
    checked = utc_now()
    for p in get("/props", sport="nba", updated_since=since):
        print(f"{p['observed_at']}  {p['player']} {p['stat']} now {p['line']} "
              f"({price(p['over_american'])} / {price(p['under_american'])})")
    since = checked