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Engineering insights
Deep dives into prediction market data, blockchain indexing, and the technical challenges we solve.
- Education·January 20, 2025·15 min read
The Ultimate Guide to Prediction Markets: Learn, Build, and Profit
How Polymarket and Kalshi work, why they're different from sports betting, and how to build profitable tools on top of them.
Read article - Engineering·January 18, 2025·12 min read
The Hidden Complexity of Indexing Polymarket: A Developer's Deep Dive
Why tracking wallets on the world's largest prediction market is harder than you think, and how Predexon makes it effortless.
Read article - Guides·July 26, 2026·10 min read
How to Get Polymarket Historical Data: The Complete Guide
Every way to get historical Polymarket data — trades, prices, and tick-level orderbooks — from free public endpoints to research-grade datasets.
Read article - Guides·July 26, 2026·8 min read
Kalshi Historical Orderbook Data: What Exists and How to Get It
Kalshi's API only serves the live book. How tick-level Kalshi orderbook history gets captured, what it contains, and what you can build with it.
Read article - Guides·July 26, 2026·9 min read
Polymarket vs Kalshi: A Data Engineer's Comparison
Two very different exchanges, one asset class. How Polymarket and Kalshi differ in market structure and data access — and what that means for builders.
Read article - Guides·July 26, 2026·11 min read
How to Backtest a Prediction Market Strategy (Properly)
Most prediction market backtests are fiction: sampled prices, no book depth, no queue modeling. Here's what a rigorous backtest needs and how to build one.
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