Our proprietary cross-venue engine at StartupHub.ai has just surfaced 10 prediction market arbitrage opportunities, where the same real-world event is priced differently across venues like Polymarket, Kalshi/Robinhood, and PredictIt. An arbitrage lock occurs when buying 'YES' on one market and 'NO' on another for the same event totals less than $1, guaranteeing a payout.
These spreads, while offering a guaranteed return, can close rapidly. It's crucial for participants to consider potential fees, KYC requirements, and withdrawal limits, as these can impact net profitability. This information is for informational purposes only and should not be considered financial advice.
Track these live, or poll the 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 JSON API and an MCP tool, so a trading agent can poll live Polymarket, Kalshi and PredictIt arbitrage opportunities and act on them.
curl -H "Authorization: Bearer sk_live_..." https://www.startuphub.ai/api/v1/arbitrage?arbs_only=1Read the arbitrage API reference or open the live JSON endpoint.
Focused guides: Polymarket arbitrage, Kalshi arbitrage, and the arbitrage bot API.
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.
