StartupHub.ai's proprietary cross-venue engine has detected six prediction market arbitrage opportunities as of July 22, 2026. An arbitrage lock occurs when buying 'YES' on one market and 'NO' on an identical market on another venue costs less than $1 total, guaranteeing a profit regardless of the outcome.
Five of these opportunities are currently live, offering immediate potential for guaranteed returns. Spreads in these markets can close rapidly, and potential profits can be affected by fees, KYC requirements, and withdrawal limits across platforms. This information is for educational purposes only and is not financial advice.
Track these live, or poll the free API
The board above refreshes on its own, so this page stays current long after today. The full cross-venue feed lives on the arbitrage board, and every match is also a free JSON API and an MCP tool, so a trading agent can poll live Polymarket, Kalshi and PredictIt arbitrage opportunities and act on them.
curl https://www.startuphub.ai/api/v1/arbitrage?arbs_only=1Read the arbitrage API reference or open the live JSON endpoint.
Informational feed, not financial advice. Live arbitrages are often fleeting, and fees, gas, KYC and withdrawal limits eat into the spread. Verify each market’s resolution rules and costs before trading.