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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

What You Can Build

Arbitrage Bots

Monitor price discrepancies across platforms and execute trades instantly.

Aggregator Dashboards

Build Bloomberg-like views combining odds from every major exchange.

Algorithmic Trading

Feed normalized market data into your models and strategies.

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
  • Unlimited historical data
  • Trading API / SDK access
  • Private Discord Channel
  • Community support (Discord)
  • No Arb or EV signals
  • 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
  • Unlimited historical data
  • Trading API / SDK access
  • Private Discord Channel
  • Priority support (7 days/week)
  • No Arb or EV signals

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

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