Is the use of https://cdn.builder.io/api/v1/proxy-api free?

[jb-thery]

Hello

I am currently working on a script to load Google Tag Manager and am considering using the URL https://cdn.builder.io/api/v1/proxy-api for this purpose. Could you please confirm if using this API is free of charge? Additionally, I would appreciate it if you could provide details regarding any limitations or restrictions associated with its usage.

Thank you in advance for your assistance.

<script>
      partytown = {
        resolveUrl(url, location) {
          if (
            url.hostname.includes("google-analytics") ||
            url.hostname.includes("www.googletagmanager.com")
          ) {
            const proxyUrl = new URL("https://cdn.builder.io/api/v1/proxy-api");
            proxyUrl.searchParams.append("url", url);
            return proxyUrl;
          }
        },
        forward: ["dataLayer.push"],
        logCalls: true,
        logGetters: true,
        logSetters: true,
        logImageRequests: true,
        logMainAccess: true,
        logSendBeaconRequests: true,
        logStackTraces: false,
        logScriptExecution: true
      };
    </script>
    <script src="/~partytown/debug/partytown.js"></script>

<script type="text/partytown">
      (function (w, d, s, l, i) {
        w[l] = w[l] || [];
        w[l].push({ 'gtm.start': new Date().getTime(), event: 'gtm.js' });
        var f = d.getElementsByTagName(s)[0],
          j = d.createElement(s),
          dl = l != 'dataLayer' ? '&l=' + l : '';
        j.async = true;
        j.src = 'https://www.googletagmanager.com/gtm.js?id=' + i + dl;
        f.parentNode.insertBefore(j, f);
      })(window, document, 'script', 'dataLayer', 'GTM-XXXXXXXX');
    </script>