Arbitrage
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.
Predictefy
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
Risk-Free Arbitrage in Prediction Markets in 2026
What makes prediction market arbitrage risk-free, how to find opportunities step by step, and the operational risks the term does not cover.
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