Polymarket Odds API

Access Polymarket odds via OddsPapi. No scraping, no commercial account required.

Live Odds
Prediction Market

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About Polymarket

Polymarket is the world’s largest prediction market, where users trade on the outcome of real-world events — from elections and policy decisions to cultural and sports events. Built on the Polygon blockchain, Polymarket provides crowd-sourced probability estimates backed by real money, making it a unique data source.

For developers, Polymarket data offers something no traditional bookmaker provides: real-time crowd-sourced probabilities on non-sports events. Compare Polymarket’s implied probabilities against sportsbook odds where markets overlap (like US elections or awards shows) to identify pricing gaps between prediction markets and traditional bookmakers.

OddsPapi includes Polymarket data alongside 350+ sportsbooks and exchanges via a single REST API. Access prediction market prices, historical probability curves, and cross-reference them against bookmaker odds — all in standardized JSON. Free tier includes 5,000 requests per month.

Quick Start: Access Polymarket Odds

Get started with Polymarket odds in under 5 minutes. Here’s a Python example:

import requests

API_KEY = "YOUR_API_KEY"
BASE_URL = "https://api.oddspapi.io/v4"

# Get Polymarket odds for soccer
response = requests.get(
    f"{BASE_URL}/odds",
    params={
        "apiKey": API_KEY,
        "bookmakers": "polymarket",
        "sportId": 10  # Soccer
    }
)

data = response.json()
for fixture in data.get('data', []):
    home = fixture['participants']['home']['name']
    away = fixture['participants']['away']['name']
    print(f"{home} vs {away}")

    # Access polymarket odds
    if 'polymarket' in fixture.get('bookmakerOdds', {}):
        odds = fixture['bookmakerOdds']['polymarket']
        print(f"  Markets available: {list(odds.get('markets', {}).keys())}")

Why Use OddsPapi for Polymarket Data?

Feature Direct Access OddsPapi
API Access Commercial account required Free tier available
Setup Time Days/weeks of negotiation 5 minutes
Other Bookmakers Polymarket only 346+ bookmakers
Sharp Lines Not available Pinnacle, Singbet, SBOBet
Historical Data Not available Included free

Technical Specifications

Bookmaker Slug polymarket
Live Odds Yes
Classification Prediction
Data Format JSON (REST API)
WebSocket Available for live odds
Authentication API key (query parameter)

Available Markets

Access a wide range of betting markets from Polymarket through our API:

  • Match Winner – Full Time Result (1X2)
  • Over/Under – Total goals, points, etc.
  • Asian Handicap – Line betting for balanced odds
  • Both Teams to Score – Yes/No markets
  • Player Props – Individual player markets (where available)
  • Live Markets – In-play odds that update in real-time

Start Using Polymarket Data Today

Get access to Polymarket odds plus 346 other bookmakers. Free tier includes 5,000 requests per month.

  • No credit card required
  • 5-minute setup
  • Historical data included
  • WebSocket support for live odds

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Read Documentation