API
How to Build a Kalshi Trading Bot (2026)
A line-by-line Python guide to building a Kalshi trading bot in 2026: free public market data, the March 2026 price-format change, and signed orders.
API
Prediction Markets
What Is a Prediction Market API? A Complete Beginner's Guide
A beginner's guide to prediction market APIs: what they expose, how authentication works, and how to start building with free market data.
API
Polymarket API: The Complete Guide for Developers (2026)
The Polymarket API after CLOB V2: four services, free data and streams, the new signing model, current SDKs, and the gotchas that break pre-2026 tutorials.
Prediction Markets
Kalshi API: The Complete Guide for Developers (2026)
Everything developers need for the Kalshi API in 2026: free REST data, authentication, historical candles, WebSocket streaming, SDKs, and rate limits.
Prediction Markets
7 Best Prediction Market APIs and SDKs in 2026
The best prediction market APIs in 2026 do more than expose one exchange. The same events now trade across Polymarket, Kalshi, Opinion, Limitless, SX Bet, Myriad, and Gemini, each with its own identifiers, price formats, and order-book schemas. For developers, traders, AI agents, and financial institutions, the challenge is