Now in public beta

See what changed.
Before your users do.

Visual regression testing and screenshot monitoring. API-first, with MCP for your AI coding assistant. From £19/month.

5,000 free screenshots per month. No credit card required.

How it works

Three steps to visual confidence

Capture

Paste a URL. Get pixel-perfect screenshots across desktop, tablet, and mobile viewports in seconds.

$ curl -X POST /v1/screenshots \
-d '{"url":"https://example.com"}'

Compare

We diff every pixel against your baseline using SSIM perceptual comparison. Not just pixels — structural similarity. Dramatically fewer false positives.

PASS · 0.02% diff
Threshold: 1.0% · SSIM: 0.998

Alert

Get notified the moment something breaks. Slack, email, or webhook. Schedule monitoring hourly, daily, or on every deploy.

#alerts · Visual regression detected
/pricing · 3.2% diff · Layout shift

API-first

Built for your workflow, not ours

terminal

# Run a visual regression test
$ curl -X POST https://api.thepixelhouse.co.uk/v1/tests/run \
  -H "Authorization: Bearer ph_live_xxx" \
  -d '{
    "url": "https://example.com",
    "viewport": "desktop",
    "baseline": "bl_abc123"
  }'

{
  "status": "pass",
  "diff_percentage": 0.02,
  "ssim_score": 0.998,
  "diff_url": "https://cdn.thepixelhouse.co.uk/diffs/..."
}

A single POST request captures a screenshot. A second request compares it against your baseline. Works with any language, any framework. Integrate with your CI/CD pipeline, or use the MCP server from your AI coding assistant.

No browser dependencies to install. No flaky Selenium scripts. Just an API key and an HTTP client. We handle the rendering infrastructure so you can focus on catching regressions, not managing headless browsers.

SDK examples CI/CD integrations MCP server REST API

Visual diffing

Pixel-level accuracy.
Perceptual intelligence.

Current

Baseline

SSIM-based comparison catches real regressions while ignoring sub-pixel font rendering noise. No more 3am false positive alerts.

Traditional pixel diffing flags every anti-aliasing change as a regression. SSIM (Structural Similarity Index) evaluates luminance, contrast, and structure the way the human visual system does, reducing false positives by an order of magnitude. Set your own threshold, define ignore regions, and approve changes directly from the dashboard.

MCP integration

Works inside your AI coding assistant

pixelhouse mcp connected

You

Check if my CSS changes broke the homepage layout

Claude

Running visual regression on your homepage.

run_visual_regression

Pass0.3% diff · below 1% threshold

No visual regressions detected. Your CSS changes are safe to ship.

The Pixel House exposes a Model Context Protocol server so AI coding assistants can capture screenshots, run comparisons, and check baselines without leaving your editor. Ask your assistant to check for visual regressions after a refactor and it handles the rest.

Compatible with Claude Code · Cursor · Windsurf · GitHub Copilot

Pricing

Flat rate. No per-screenshot surprises.

Save 20%

Free

£0

5,000 screenshots/month

3 projects
1 monitor schedule
7-day retention
1 user

Get started

Solo

£19/mo

10,000 screenshots/month

10 projects
5 monitor schedules
30-day retention
1 user
MCP server access