Build a Prediction Market Calculator with AI

Vibe-code a prediction-market calculator for payout, ROI, arbitrage, and Kelly stake sizing.

So funktioniert es

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Beschreiben Sie Ihre Idee

Schreiben Sie eine Beschreibung in Textform, die erklärt, was Sie möchten.

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Die KI erstellt es

Cryptohopper generiert sofort produktionsreifen Code.

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Bereitstellen & live gehen

Ihr Projekt wird innerhalb von Minuten auf einer eigenen Subdomain gehostet.

Warum mit KI statt mit einem Entwickler bauen?

CryptohopperTraditioneller Entwickler
Zeit bis zum LaunchUnter 5 Minuten2–8 Wochen
KostenAb 0 $5.000 $ – 50.000 $+
WartungInklusiveLaufendes Honorar

What is a prediction market calculator?

Prediction-market contracts pay out $1 if an event happens and $0 if it doesn't, so a price is a probability. This calculator does the math that matters: the payout and ROI on a YES or NO position, the arbitrage when YES + NO prices don't add to 100%, and the Kelly-criterion stake size for an edge you believe in. It's pure, browser-side math; describe it and Cryptohopper.AI builds it.

Common features

  • Payout and ROI for YES/NO at a given price
  • YES + NO arbitrage detector
  • Kelly-criterion stake sizing from your edge
  • Implied probability from price
  • Instant recompute as you type
  • 100% browser-side, no key

Real-world examples

ROI on YES

Buy YES at 38¢ — see the payout and return if it resolves true.

Arb check

Spot when YES + NO sum below $1 for a locked-in edge.

Kelly stake

Size a bet by the Kelly criterion given your estimated probability.

Why Cryptohopper.AI fits prediction market calculator projects

Cryptohopper.AI builds the prediction-market math — payout, arbitrage and Kelly — from a description. Add fees or a bankroll model by chatting.

Probieren Sie diese Prompts aus

Kopieren Sie einen der folgenden Prompts und fügen Sie ihn in Cryptohopper ein, um zu starten.

Build me a prediction-market calculator that takes a YES/NO price and stake and shows payout, profit, and ROI.

Create a calculator that detects YES+NO arbitrage and shows the locked-in return.

Make a tool that suggests a Kelly-optimal stake given my edge and the odds.

Build a clean prediction-market payout and ROI calculator.

Häufig gestellte Fragen

What does it calculate?
Position payout, profit, and ROI for prediction-market contracts; YES+NO arbitrage detection; and Kelly-optimal stake sizing given your estimated edge.
What is the Kelly stake?
The Kelly criterion sizes a bet to maximise long-run growth given your edge and the odds. The calculator computes it so you don't over- or under-bet.
Does it run locally?
Yes — all math runs in your browser, nothing is sent anywhere.

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