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Posted on • Edited on • Originally published at pagebolt.dev

PageBolt vs. Urlbox: beyond screenshot APIs

PageBolt vs. Urlbox: Beyond Screenshot APIs

Urlbox has been around since 2015 and it's a solid screenshot API. If you need a screenshot, it delivers. The developers who end up on PageBolt's docs are usually the ones who started with a screenshot API and then needed one more thing — a video, a narrated demo, a page inspection for an AI agent — and found themselves stitching together multiple tools.

PageBolt is what you reach for when that happens.

The core difference

Urlbox captures web pages as images or PDFs. It's been refining that capability for a decade and does it well.

PageBolt captures web pages as images, PDFs, and videos — and adds browser automation sequencing, structured page inspection, and MCP integration. Screenshots are entry-level; the API is designed around what comes after them.

Feature comparison

Capability Urlbox PageBolt
Screenshot (URL → image)
PDF generation
Full-page capture
Block ads/banners
Custom viewport/device
Video recording
AI voice narration
Multi-step sequencing
Page inspection (/inspect)
MCP server (Claude/Cursor)
OG image generation

The narrated video case

The clearest reason to choose PageBolt over Urlbox is video recording with AI narration. There's no equivalent feature in Urlbox's API.

const res = await fetch('https://pagebolt.dev/api/v1/video', {
  method: 'POST',
  headers: { 'x-api-key': process.env.PAGEBOLT_API_KEY, 'Content-Type': 'application/json' },
  body: JSON.stringify({
    steps: [
      { action: 'navigate', url: 'https://yourapp.com', note: 'Open the app' },
      { action: 'click', selector: '#features', note: 'Explore features' },
      { action: 'scroll', y: 400, note: 'See what\'s included' }
    ],
    audioGuide: {
      enabled: true,
      voice: 'nova',
      script: "Here's a quick look at the product. {{1}} {{2}} Browse the features. {{3}} Everything you need."
    },
    frame: { enabled: true, style: 'macos' },
    pace: 'slow'
  })
});
// Returns binary MP4 — save with Buffer.from(await res.arrayBuffer())
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One API call. Narrated MP4 with styled browser frame. No screen recorder, no video editing, no separate TTS service.

The AI agent case

Urlbox has no /inspect endpoint. For developers building AI agents that need to understand a page before acting on it, PageBolt's structured element map is the relevant primitive:

const res = await fetch('https://pagebolt.dev/api/v1/inspect', {
  method: 'POST',
  headers: { 'x-api-key': process.env.PAGEBOLT_API_KEY, 'Content-Type': 'application/json' },
  body: JSON.stringify({ url: 'https://yourapp.com/dashboard' })
});
const { elements, forms, links, headings } = await res.json();
// elements: [{tag, role, text, selector, attributes, rect}, ...]
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Returns a typed map of interactive elements with verified CSS selectors — what an agent needs to act without guessing.

When to use Urlbox

Urlbox's decade of history shows in its screenshot quality and reliability. If your use case is entirely screenshots — thumbnail generation, visual regression, link previews, OG capture — and you don't anticipate needing video or agent tooling, Urlbox is a mature choice.

PageBolt is the right call if:

  • You need video recording or narration at any point
  • You're building AI agents that interact with web pages
  • You want MCP integration for Claude Desktop, Cursor, or Windsurf
  • You want one API that covers all browser output types without switching tools later

PageBolt offers 100 free requests/month, no credit card required. Urlbox has no free tier — only a 7-day trial with a card.


Try it free — 100 requests/month, no credit card. → pagebolt.dev

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