<link
  href="https://unpkg.com/grapesjs/dist/css/grapes.min.css"
  rel="stylesheet"
/>
<script src="https://unpkg.com/grapesjs"></script>
<script src="path/to/grapesjs-blocks-basic.min.js"></script>

<div id="gjs"></div>

<script type="text/javascript">
  var editor = grapesjs.init({
    fromElement: 1,
    container: "#gjs",
    plugins: ["gjs-blocks-basic"],
    pluginsOpts: {
      "gjs-blocks-basic": {
        /* ...options */
      }
    }
  });
</script>