• STABLE
  • DATA
  • AUTOMATED
  • HUMAN

How to create consistent UI test assets with your AI

Connect Lorem Picsum to your agent to stop flaky tests caused by random image changes. You'll use seed strings to lock in specific visuals for your UI components.

Ask AI about this page

Short answer

How do I get the same images every time for my UI tests?

Provide a specific seed string to your agent to request a unique, repeatable image. This ensures your automated tests always see the same content instead of random photos. You'll get stable URLs and metadata for your test suite.

The results

What you get from this setup

The AI handles the image fetching so you can focus on the test logic.

STABLE

Predictable test runs

The AI uses seed strings to pull identical images every time. This stops your UI tests from failing due to unexpected visual changes.

DATA

Image metadata access

Your agent can pull specific details about the images it fetches. This helps you verify that the right dimensions or types are being used.

AUTOMATED

Direct URL generation

The AI generates direct links to the images. You can drop these straight into your test code or component props.

HUMAN

Manual visual review

You still need to look at the final UI. The AI provides the assets, but you decide if the layout looks right.

The workflow

What your AI does when you request an image.

The agent acts as the bridge between your test requirements and the image provider.

  1. Identify seed requirements

    The agent determines the specific seed string needed to match your existing test suite or design requirements.

    get_seed_info

  2. Fetch the image link

    The agent calls the provider to get a direct URL for the image associated with that seed.

    get_seed_image_url

  3. Verify image properties

    The agent checks the image details to ensure the size and content match your test expectations.

    get_seed_info

  4. Deliver to your code

    The agent provides the final URL or metadata to your agentic workflow or directly into your chat.

    get_seed_image_url

Try it

Copy these to start.

Use these prompts to begin generating your test assets.

Starting points

Swap out the bracketed text with your specific image dimensions or seed numbers.

Lorem Picsum Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_BpGvsd3F7ZiU2FdSC6HlwGpJk3sdjmn8ZITZjym3/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — Lorem Picsum capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "lorem-picsum-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_BpGvsd3F7ZiU2FdSC6HlwGpJk3sdjmn8ZITZjym3/mcp"
    }
  }
}
Copy into chat04

  • Get a URL for a 400x400 image using seed 'test-123'.

  • Find the metadata for the image with seed 'ui-component-alpha'.

  • I need a consistent 800x600 placeholder for my dashboard test; use seed 'dashboard-bg'.

  • Check the info for the image using seed 'profile-avatar-01' to see its dimensions.

  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Start here

Connect Lorem Picsum once, then ask.

One connection gives your agent access to the entire image library. Your credentials stay encrypted and secure.

Connect Lorem Picsum to your AI

FAQ

Common questions

  • 01

    Will the images change if I use the same seed?

    No. Using the same seed string ensures the agent pulls the exact same image every time.

  • 02

    Can the AI upload these images to my local drive?

    No. The AI can only provide the URLs and metadata for the images.

  • 03

    Can I use this to generate custom AI art?

    No. This tool is for pulling specific, seeded placeholder images from the Lorem Picsum library.

  • 04

    Does the AI choose the image size for me?

    The AI can request specific sizes, but you must tell it which dimensions you need in your prompt.

  • 05

    Can the AI delete images from the provider?

    No. The AI only has permission to read image info and get URLs.

  • More questions about Lorem Picsum? The Connector page answers them. See everything the Lorem Picsum Connector can do

Connect Lorem Picsum to Claude, Cursor, ChatGPT & more