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LassoCut MCP: remove image backgrounds in Claude, Cursor and Windsurf

The LassoCut connector adds background removal to Claude Desktop, Claude Code, Cursor and Windsurf: ask in plain English, and the assistant calls LassoCut for you. No dashboard, no separate upload step.

What it does

The connector exposes three tools to the assistant:

  • remove_background — removes the background from one or more images: file paths, whole folders, or image URLs. Preview by default; full size, a background colour, cropping, output format, a marketplace preset and a cast shadow are all options.
  • get_credits — checks your credit balance and how many free previews you have left today and this month.
  • sign_in — connects your LassoCut account, right from the chat.

Example requests: “Remove the background of the photos in D:\Shop\new” or “Make these 3 images full size on a white background.” Results are saved next to each original file; for an image URL, the result is saved to your Downloads folder unless you give an absolute output folder.

Install

Claude Desktop

Download the extension and double-click the file; Claude Desktop installs it and runs it for you, on the Node.js it bundles, so there is nothing else to install. An API key in the extension's settings is optional — you can sign in from the chat instead.

Download the Claude Desktop extension (.mcpb)

Claude Code

claude mcp add lassocut -- npx -y lassocut-mcp

On Windows:

claude mcp add lassocut -- cmd /c npx -y lassocut-mcp

Cursor and Windsurf

Add this to your MCP settings:

{
  "mcpServers": {
    "lassocut": {
      "command": "npx",
      "args": ["-y", "lassocut-mcp"]
    }
  }
}

Claude Code, Cursor and Windsurf run the connector with npx, which needs Node.js 20 or later already installed.

Signing in

Ask the assistant to sign you in. The sign_in tool opens the LassoCut approval page in your browser, and also gives you the link and a code right away, in case the browser doesn't open on its own. Approve there, then ask the assistant to check your credits. This key is shared with lassocut login, the command-line tool — sign in with either one and both use it. You can also paste a key from your account into Claude Desktop's extension settings, but that field is optional.

Costs and guardrails

  • Preview by default: 0.25 credit, and every account gets 50 free previews a month (up to 10 a day).
  • Full size: 1 credit per image, only when you ask for it.
  • Up to 50 images per request.
  • Asking for full size on more than 10 images: the assistant shows the cost and your balance, and waits for your OK before it charges anything.
  • Existing files are never overwritten.

Full pricing: pricing.

Privacy

Images you process are sent only to the LassoCut API, to remove the background; the connector doesn't send them anywhere else. See the privacy policy for how results and data are kept.

Marketplace presets and cast shadow

From version 1.1.0, remove_background accepts preset (amazon, ebay, etsy, shopify, zalando or instagram), shadow (none or cast), light_angle (-90 to 90, positive = light from the left), shadow_length (short, medium or long) and shadow_strength (0 to 100). A preset saves a .jpg framed to that marketplace's image rules and sets the background, format and crop itself. Example request: "Make these photos Amazon-ready with a cast shadow." See marketplace presets.

Questions

Can Claude remove the background from an image?

Yes, with the LassoCut MCP server installed. Claude then has a remove_background tool: you ask in plain words, Claude sends the images to LassoCut and saves each cut-out next to the original. Without a background removal tool connected, Claude has no way of its own to return a clean cut-out in the chat; it can describe the image or write code for you to run.

Which assistants does it work with?

Claude Desktop (as an extension), Claude Code, Cursor and Windsurf, using the setups above. Other MCP clients that start a local server from a JSON config like the one above can use the same settings.

Does it work with ChatGPT?

ChatGPT is not one of the clients we document or test, so we cannot promise it works there. To remove a background without an assistant, use the free try on the home page (no account), the batch tool for a folder, or the API.

Does it cost anything to try?

The connector is free. Images use the credits of your LassoCut account: previews are the default, and every account gets 50 free previews a month (up to 10 a day). Full size costs 1 credit per image and is used only when you ask for it.

Learn more

lassocut-mcp on npm · Source on GitHub · API reference · Pricing