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DiffiCat

com.difficat/difficat · v3.22.4

Compare a website before and after a migration: missing pages, content changes, visual diffs.

Connect Remote server

Terminal
claude mcp add --transport http difficat https://app.difficat.com/mcp
~/.cursor/mcp.json
{
  "mcpServers": {
    "difficat": {
      "url": "https://app.difficat.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "difficat": {
      "type": "http",
      "url": "https://app.difficat.com/mcp"
    }
  }
}
Claude Desktop
Settings > Connectors > Add custom connector
URL: https://app.difficat.com/mcp

Tools 6 found in our last check

  • check_page

    Use when you deployed or edited a page and need to catch visual regressions and content changes: it compares the live URL with a baseline captured on the first call, a snapshot or a production URL, and answers the regressions. Free up to 100 pages per client address per day, no…

  • diff_deploy

    Use when a staging or preview deploy should match production, or a migrated site its old one: it compares the pages of both origins and answers only the pages that are missing, changed or look different. Free up to 100 pages per client address per day, no key needed.

  • wait_for_comparison

    Waits until the job is completed, failed or cancelled, or timeoutSeconds pass, then answers status, progress and, once terminal, the summary (passed, failed, issuesBySeverity). On "running", call it again. Free.

  • get_report

    The finished report. Call it first with failedOnly: true and view: "digest": only the failed pages, each with its issues, diff percentage and largest regions, and a text line per page; summary covers every page. check_page and diff_deploy return the first regressed region's imag…

  • capture_screenshot

    Takes a full-page screenshot of one URL, for example to see how a relaunched page or a mobile layout looks. Free 10 times per client address per day, no key needed. The PNG is taken at the given viewport width and returned inline when small, else as links.file to fetch with the…

  • get_balance

    The prepaid balance and last 20 ledger entries of the key in the request’s Authorization: Bearer or X-DiffiCat-Key header; a human obtains one on the account page (/account), which a refusal’s nextSteps name. A Pro key also returns allowance (included pages shared with the web a…

Details

Endpointhttps://app.difficat.com/mcp (Streamable HTTP)
First published25 Sep 2026
Last updated25 Sep 2026
Registry namecom.difficat/difficat

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