INSTITUTIONAL-GRADE PREDICTION MARKET DATA
The signal layer for
prediction markets
Prediction markets have crossed a threshold. What began as a niche corner of alternative data is now a serious signal source — one that sophisticated investors, quant funds, and systematic traders are actively integrating into their workflows. The problem isn't the data. The problem is access.
PLATFORMS
POLYMARKET
KALSHI
FORECASTEX
One pipeline. Every platform.

Today's prediction market platforms operate as entirely independent entities, with no standardization across data structures, naming conventions, categorization, or access methods. Making sense of the landscape requires connecting to multiple fragmented sources and reconciling incompatible formats — a significant barrier for any serious data consumer.

Prediction Markets Data eliminates that friction.

UNIFIED AGGREGATION
Data from all major platforms consolidated into a single, consistent pipeline — no more managing multiple integrations.
STANDARDIZED SCHEMA
Common field names and value formats across all sources, regardless of origin. Query once, get everything.
PROPRIETARY CATEGORIZATION
Every market is classified using our own normalized taxonomy, applied consistently and reliably — something the platforms themselves do not offer.
SIMPLIFIED DISCOVERY
With thousands of new markets added daily, our categorization and search tools make exploration and filtering practical at scale.
What the data covers

Once connected, you have access to the full depth of the prediction market ecosystem through a single integration.

MARKET STRUCTURE & PRICING
Real-time and historical prices, candlestick data, and volume charts across all supported platforms. Every market carries implied probabilities derived directly from live trading activity — a continuous, crowd-sourced probability signal updated in real time.
ORDER FLOW & LIQUIDITY
Full orderbook history, bid/ask spreads, and trade-by-trade history let you model liquidity conditions, detect order flow patterns, and assess market depth — the same analytics framework you'd apply to any exchange-traded instrument.
OPEN INTEREST & POSITIONING
Track open interest over time and aggregate position data to understand where capital is concentrated and how exposure is building or unwinding across a given outcome.
CROSS-PLATFORM ARBITRAGE SIGNALS
Our cross-platform matching layer identifies equivalent markets trading simultaneously on different platforms — surfacing pricing discrepancies and arbitrage opportunities that are invisible when platforms are viewed in isolation.
SMART MONEY & WALLET ANALYTICS
Profile individual wallets by historical performance and monitor cohort-level behavior. Get alerted in real time when a flagged high-performing wallet executes a new position — including the market, direction, and size — before the broader market catches on.
REAL-TIME STREAMING
For latency-sensitive applications, our WebSocket infrastructure delivers live trades, market lifecycle events, and wallet activity as they happen — no polling required.
Built for institutional workflows

Our API is designed for teams that need reliability at scale. Rate limits are tiered to match institutional throughput requirements, with dedicated routing and custom configurations available for high-volume consumers. Whether you're running systematic screens across thousands of markets, backtesting probability signals against asset price movements, or building a live monitoring dashboard for event-driven positions, the infrastructure is built to support it.

Why now

Prediction market liquidity has grown substantially, and the range of topics covered — macro events, central bank decisions, geopolitical outcomes, earnings-adjacent questions, and crypto markets — now overlaps meaningfully with the exposures that matter to institutional portfolios.

These markets don't just reflect opinion; they aggregate information from participants with real financial stakes, making them a qualitatively different kind of sentiment signal.

Prediction Markets Data makes that signal accessible, clean, and ready to use.

READY TO EXPLORE THE DATA?
Try our live tools — no account required.
Questions? Reach us at Info@OpenMindData.io