CDN Endpoint

The FAST Widget

Drop-in challenge engine for any sportsbook. One script tag. Shadow DOM isolation. Full white-label support. No build step required.

    
    // Minimal embed

    <script

      src="https://widget.fundedfast.eu/fast-widget.iife.js"

      data-api-key="pk_your-widget-key"

      data-user-id="current-user-id"

      data-fast-widget

    ></script>

    // Full customization

    <script

      src="https://widget.fundedfast.eu/fast-widget.iife.js"

      data-api-key="pk_your-widget-key"

      data-user-id="current-user-id"

      data-user-token="<from your backend>" // required in production

      data-lang="en"                // en, de, hr

      data-theme="dark"              // dark, light

      data-position="bottom-right"    // bottom-right, bottom-left

      data-brand-color="#c9a227"      // primary brand color

      data-brand-color-end="#f0d78c"  // gradient end

      data-brand-logo="https://..."   // operator logo URL

      data-brand-font="Inter"        // Google Font name

      data-currency="EUR"           // display currency

      data-show-leaderboard="true"   // toggle sections

      data-show-badges="true"

      data-show-history="true"

      data-show-shop="true"

      data-show-confetti="true"

      data-show-lang-picker="true"

      data-fab-size="56"            // FAB button size in px

      data-fast-widget

    ></script>

    // Display modes (data-mode)

    <script src="..." data-api-key="pk_..." data-user-id="..."

      data-mode="fab"                 // default: floating button, bottom corner

      // data-mode="sidebar"          - renders inline, fills the script tag's parent element

      // data-mode="fullpage"         - fullscreen page: seamless background, centered content & nav

      data-fast-widget

    ></script>

    // Payments & approvals: server-side, not in the browser.

    // When a user buys a challenge, FAST calls your backend approval URL

    // (signed POST, 5s timeout). Charge the wallet, then respond

    // { "approved": true } - or false to decline. Configure it in

    // Backoffice > Settings > Approval URL. The widget just reports events:

    <script>

      window.FastWidget.mount({

        apiKey: 'pk_your-widget-key',

        userId: 'player-42',

        onEvent: (event, data) => {

          if (event === 'challenge.purchased') { /* approved, challenge live */ }

          if (event === 'challenge.purchase_failed') { /* declined or errored */ }

        }

      });

    </script>

    // Engagement modules (bonuses, missions, tournaments, loyalty)

    // Activate the modular Shell for full engagement suite

    <script>

      window.FastWidget.mount({

        apiBase: 'https://api.fundedfast.eu/v1',

        apiKey: 'pk_your-widget-key',

        userId: 'player-42',

        theme: 'dark',

        // Modules auto-detected from your plan tier:

        //   Launch: challenges

        //   Growth: + bonuses, missions, tournaments

        //   Pro:    + loyalty (all modules)

        onEvent: (event, data) => {

          console.log(event, data);

          // Events: bonus.activated, mission.joined,

          //   tournament.joined, reward.claimed, ...

        }

      });

    </script>

Security Model

The widget uses a pk_ public key - safe to embed in frontend code.

Read-only access to user progress, challenges, bonuses, missions, tournaments, and loyalty. Cannot modify rulesets or access other users.

User Token Lifecycle

data-user-token is minted by your backend (POST /v1/sse/token, server key) and lasts 1 hour.

The widget auto-renews it before expiry - open tabs keep working. Renewal is capped at 24h per token; past that, onTokenExpired fires and your page re-mints: widget.update({ userToken }).

Engagement Modules

Challenges - Funded account challenges with progress ring, shop, withdrawal

Bonuses - Wagering requirements with progress tracking, offer activation

Missions - Time-boxed objectives with join, progress bars, rewards

Tournaments - Live leaderboard competitions with scoring and prizes

Loyalty - Points, tier progression, cashback, benefits

Modules are controlled by your plan and load automatically — no extra config needed.