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Predexon API Documentation

Welcome to Predexon - the API for prediction market data and cross-platform market matching. Find equivalent markets across Polymarket and Kalshi, and access comprehensive market data, trading history, and price analytics.

Why Predexon?

Building on prediction market platforms requires finding the same markets across venues and accessing comprehensive historical data. Predexon solves this by providing:
  • Cross-Platform Market Matching - Find equivalent and related markets across Polymarket and Kalshi
  • Comprehensive Market Data - Orders, activity, prices, and OHLCV candlesticks
  • Smart Match Confidence - Exact matches vs. related markets with confidence scores
  • Production-Ready - Built for reliability, performance, and scale

Core Features

Getting Started

Quickstart Guide

Find matching markets and fetch data in 5 minutes

Use Cases

  • Arbitrage Trading - Find price discrepancies across Polymarket and Kalshi
  • Market Analysis - Analyze trading patterns and price movements with OHLCV data
  • Multi-Venue Monitoring - Track the same events across multiple platforms
  • Portfolio Analytics - Track wallet performance with PnL calculations
  • Research & Backtesting - Historical order flow and candlestick data

Support