REST API to compute expected value, wagering requirements, and effective bonus rate. Accept deposit, bonus, wagering, game contribution, RTP. Returns JSON.

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Q2 2026 · In Development

Odds Converter API

Convert between American, decimal, and fractional odds with implied probability. Low‑latency, high‑precision endpoints.

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Q3 2026 · Planned

RTP Data API

Access our full slot RTP database, volatility ratings, max win multipliers, and hit frequency. Filter by provider, game name, or volatility.

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Q4 2026 · Public Launch

Full API Suite & Documentation

All APIs will be publicly available with free and paid tiers. Complete OpenAPI documentation, SDKs, and support channels.

💡 Why These APIs Matter

For Affiliates

Automatically evaluate bonuses, compare odds, and enrich your casino reviews with real‑time data. Increase user engagement and trust.

For Developers & Platforms

Integrate accurate EV calculations, odds conversion, and slot RTP data into your own apps, bots, or comparison tools.

For Bettors & Analysts

Build custom dashboards, track bonus profitability, or create advanced betting calculators using our reliable data.

For Researchers

Access historical RTP data and volatility metrics for academic studies or market analysis.

🔑 Early Access & Pricing

All current tools remain 100% free. When APIs launch, we'll offer a free tier (100 requests/day) and paid plans for higher volume. Sign up now for early access notifications.

📝 Request Early Access

❓ Frequently Asked Questions

Are all the tools free?

Yes, every tool listed on this page is completely free to use. No sign-up or payment required.

When will the APIs be available?

We plan to release private beta versions of the APIs in Q2 2026, with public availability later in the year.

Can I embed the current calculators on my site?

Currently, embedding is not supported. However, the future APIs will allow you to integrate the calculations into your own applications.

What data will the Bonus EV API provide?

It will accept deposit, bonus, wagering, game contribution, and RTP to return expected value, wagering required, and effective bonus rate.

Will the RTP Data API include volatility and max win?

Yes, the API will return RTP, volatility rating, max win multiplier, and hit frequency for thousands of slots.

How can I get early access to the APIs?

Fill out the API Access Request form on our site to be notified when early access opens.

🧠 The Playbook Experts

Meet the team →

Michael Johnson

Lead Reviewer · 12 yrs casino ops

Ex-Shift Manager, Borgata AC

Sarah Roberts

Strategy Analyst · 8 yrs

Card counter, tournament winner

David Thompson

Bonus Hunter · 10 yrs affiliate

$2.3M tracked bonuses

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1,450+ hours

real‑money testing

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data refreshed March 26, 2026

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