Build tool

Feedback widget for any HTML site

No build step, no framework, one script tag before your closing </body> is the entire integration.

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Setup steps

  1. 1

    Paste the script tag into your HTML, right before </body>

  2. 2

    That's it, no npm install, no bundler required

Code

html
<script
  type="module"
  src="https://unpkg.com/@upstep/js/dist/index.js"
  data-api-key="upstep_xxx"
></script>
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While you're here: connect an AI agent

Every Upstep project ships a built-in MCP server. Once feedback starts flowing in from Plain HTML / JS, Claude Code, Cursor, or any MCP client can list it, triage it, and file Dev-only tasks, without leaving your editor.

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Start collecting feedback in Plain HTML / JS today

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