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API Documentation

Unify Fragmented Prediction Markets

Pull standardized market data from Polymarket, Kalshi, PredictIt, ProphetX, and Opinion with a single API call.

By continuing to use or access PredictionHunt's API, you are agreeing to be bound to our API Terms of Service

As seen onFinancial TimesAs seen onPolymark.etUsed by builders and traders in our2K+ Discord community

Sample Starter Scripts

Ready-to-run Python scripts you can copy, paste, and run. Grab a free API key and start experimenting.

Cross-Platform Price Scanner

Beginner

Best Price Finder

Beginner

Sports Odds Comparison

Beginner

Election Night Dashboard

Intermediate

Arb Alert Bot

Dev+
View all scripts

Pricing

Start free. Scale as you grow.

Free

$0/month

Everything you need to start building, free.

  • 1 req/sec rate limit
  • 1,000 requests/month
  • 10 matched market requests/month
  • 5 sports matching requests/month
  • Unlimited historical data
  • Trading API / SDK access
  • Community support (Discord)
  • No Arb or EV signals
  • No Private Discord Channel
  • No priority support

Dev

$49/month
Start Building →

For builders shipping real products.

  • 20 req/sec rate limit
  • 1M requests/month
  • 100 matched market requests/month
  • 30 sports matching requests/month
  • 500 arb requests/month
  • 500 +EV requests/month
  • Unlimited historical data
  • Trading API / SDK access
  • Private Discord Channel
  • Community support (Discord)
  • No priority support

API key within 12 hours.

Most Popular

Pro

$249/month
Get Pro →

For traders and builders who need to win.

  • 100 req/sec rate limit
  • 5M requests/month
  • 1,000 matched market requests/month
  • 100 sports matching requests/month
  • 5,000 arb requests/month
  • 5,000 +EV requests/month
  • Unlimited historical data
  • Trading API / SDK access
  • Private Discord Channel
  • Priority support (7 days/week)

    API key within 12 hours.

    Enterprise

    Custom
    Book a Call →

    Custom infrastructure, no limits.

    • Custom rate limits
    • Unlimited requests
    • Unlimited matched market requests
    • Unlimited sports matching requests
    • Unlimited historical data
    • All endpoints incl. Arb & EV
    • Trading API / SDK access
    • Private Discord Channel
    • Dedicated support & onboarding
    • Custom SLAs

    Questions? Email api@predictionhunt.com

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    Explore the Endpoints

    GET/v2/matching-markets

    Matching Markets

    Find equivalent markets across all platforms via search, slug, or ticker.

    GET/v2/matching-markets/url

    Matching Markets by URL

    Find equivalent markets by providing a URL from any supported platform.

    GET/v2/matching-markets/sports

    Sports Matching

    Query matched game markets by sport and date across all platforms.

    GET/v2/markets

    Markets

    Browse and search all markets with prices. Cursor-paginated.

    GET/v2/events

    Events

    List tracked events with their matched market groups across platforms.

    GET/v2/prices/history

    Price History

    Historical OHLC candle data with configurable intervals.

    GET/v2/prices/bulk

    Prices

    Fetch current prices for up to 100 markets in one request.

    GET/v2/orderbook

    Orderbook

    Live bid/ask ladder proxied from Polymarket, Kalshi, and Opinion.

    GET/v2/arb

    Arbitrage

    Cross-platform arbitrage opportunities with real-time detection.

    GET/v2/ev

    Expected Value

    Positive EV opportunities based on cross-platform consensus pricing.

    GET/v2/status

    Status

    API health, ingestion status, and active market counts per platform.

    Looking for v1? View v1 documentation