Verifux · MCP server

Let your coding agent check whether an AI agent can use a site

One tool, run_snapshot. Point it at any URL and it reports what an agent actually finds when it arrives: a band, a pass rate, the top findings, and whether the page declares an agent surface at all.

Zero dependencies. No sign-up. No API key.

Add it

Claude Code

claude mcp add verifux -- npx -y @verifux/mcp

Any MCP client (Claude Desktop, Cursor, and others)

{
  "mcpServers": {
    "verifux": {
      "command": "npx",
      "args": ["-y", "@verifux/mcp"]
    }
  }
}

Then just ask: "run a Verifux snapshot on example.com".

Related MCP server: seo-audit-mcp

What comes back

A real run, pasted verbatim:

Verifux snapshot for example.com
Band: Mixed - 13 of 16 automated checks passed
Findings: 0 critical, 2 major, 1 minor

Top findings:
  [MAJOR] No Organization or FAQPage structured data for AI answer engines
  [MAJOR] No H1 heading on the page
  [MINOR] No meta description for search engines or AI summaries to quote

AI agent surface: none detected

That last line is the one almost nobody checks. none detected means nothing an agent looks for was found: no declared tools, no /.well-known/mcp.json, no /agents.md.

We got exactly that on our own site. The file existed. We were serving it at the wrong path, and nothing anywhere warned us. One path, and the whole surface was invisible.

Agent readiness is the only part of a site that can break without anyone noticing. No error, no alert, nothing in a dashboard. Just traffic that never arrives.

The tool

It deliberately has no score out of 100. That belongs to the full 54-checkpoint audit, and two different numbers out of 100 would contradict each other.

Prefer a terminal?

The same check as a CLI, with a CI mode that fails the build when the band drops:

npx @verifux/cli your-site.com --ci --min-band mixed

→ Verifux/verifux-cli

This is the free snapshot: a fast, deterministic read. The full audit lives at verifux.app.

This repo is the client shim. The audit engine behind api.verifux.app is not open source.

MIT · built by Verifux