Predexy: Cross-Platform Prediction Market Intelligence

Predexy aggregates prediction markets from 7 venues into a unified index, detects real-time arbitrage, and exposes everything via a clean REST API.

Predexy gives you a single API to access prediction markets from Polymarket, Limitless, Predict.fun, Manifold, PredictIt, Azuro, and Drift. It normalizes prices across all venues, detects cross-platform arbitrage opportunities with fee-adjusted scoring, and tracks wallet positions — so you can build trading tools, research dashboards, or automated strategies without managing seven separate integrations.

Quick Start

Make your first API call in minutes. Get an API key and start fetching market data.

Arbitrage Opportunities

Learn how to query arbitrage opportunities and filter by score, classification, and category.

API Reference

Complete reference for all public endpoints — markets, arbitrage, watchlists, and more.

Developer Console

Create and manage API keys, view usage analytics, and monitor request logs.

What Predexy does

Predexy continuously ingests market data from seven integrated prediction market venues, links equivalent questions across platforms using semantic embeddings, and detects when the same outcome is priced differently — giving you actionable arbitrage intelligence with lifecycle tracking and execution-quality scores.

Market Index

Volume-weighted index prices and divergence metrics across all platforms.

Arbitrage Engine

Fee-adjusted scoring, Dutch book detection, and lifecycle state tracking.

Semantic Matching

ML-powered question equivalence linking equivalent markets across venues.

Wallet Tracker

Track open positions and trade history across all integrated platforms.

Watchlists

Save markets and receive price movement alerts for questions you care about.

7 Platforms

Polymarket, Limitless, Predict.fun, Manifold, PredictIt, Azuro, and Drift.

Get started in 3 steps

1. Create a developer account

   Register at app.revalonlabs.xyz or call POST /api/v1/auth/register with your email and password. This gives you access to the Developer Console.

2. Generate an API key

   Open the Developer Console, navigate to API Keys, and create a new key. Your key is prefixed with pdx_ and shown only once — store it securely.

3. Make your first request

   Pass your key in the X-API-Key header to start fetching arbitrage opportunities and market data.

   curl https://api.predexy.com/api/v1/external/arbitrage/opportunities \
     -H "X-API-Key: pdx_your_key_here"
   

Explore the API Reference for the full list of endpoints, or jump straight to fetching arbitrage opportunities to see practical examples.