IWIN SDK • V1

Build games that earn with iWin

Drop a single <script> tag into any HTML5 or WebGL game and your players get a unified wallet across the iWin catalog — instant settlement, platform-handled refunds, and a free admin console. No Stripe, no PCI, no payout delays.

Get the SDK Read the docsUnity / WebGL

index.html

<!-- One line. That's the whole integration. -->
<script src="https://d22heec96vs4ra.cloudfront.net/sdk/iwin-bridge-v1.js"></script>

// Then, in your game:
await window.iwin.spend({
  sku: "extra_life",
  clientTxId: "run_42",
});

Get the SDK

Add this one line to your game's HTML <head>. The bridge installs window.iwin immediately and starts handshaking with the parent iWin page.

<script src="https://d22heec96vs4ra.cloudfront.net/sdk/iwin-bridge-v1.js"></script>Download

Version 1.6.0 · Published 8/27/2026, 9:35:30 PM · SHA-256 7f182f69c0ebc347…

For developers

Not just coins. The whole iWin platform, in one tag.

iWin handles payments, wallets, refunds and the admin console so you can ship the game. Everything below comes with the SDK — free.

No Stripe integration. No PCI burden.

Never touch card data or bolt on another payment processor. iWin owns the compliance surface so you don't.

Instant settlement

No payment-processor payout delay. Transactions settle on the platform ledger in real time.

Unified player wallet

One balance follows the player across the entire iWin catalog of games — spend it anywhere, carry it everywhere.

Refunds + chargebacks, handled

Disputes and refunds are resolved at the platform layer. You ship the game; iWin absorbs the risk.

Free admin console

Edit SKUs and prices anytime at /admin/games/<slug> — no rebuild, no redeploy, no extra tooling.

Works on any HTML5 / WebGL game

Embed in iframes on any host. The bridge is one script tag that works wherever your game runs.

Documentation

The full reference — every method, every error code, and the security model behind them — lives in the SDK documentation. It is available to registered developers; if you don't have access yet, email devs@iwin.com.

Quick startAdd the script tag and take your first payment.Player identityWho the player is — for display, and provably for your server.Spend receiptsSigned proof that a spend happened.Top-upSend a player to buy coins without leaving the game.AdsInterstitials and rewarded video over the same bridge.Unity & canvasWebGL builds, and games rendered in iWin's own page.API referenceEvery method, and every error code it can return.Security modelWhat the platform guarantees so you don't have to.ChangelogWhat changed in each version, and the versioning policy.

Getting your game listed

Third-party games hosted outside iWin's games CDN need a catalog row plus an allowedOrigins entry. Email devs@iwin.com with your game URL and we'll provision the integration.

Ship your game today.

One script tag to monetize any HTML5 or WebGL game on the iWin platform.

Get the SDK Read the docs