Website Auditor MCP Server

Website Auditor MCP

An MCP server for website-auditor.io — AI-visibility (GEO) and site-audit tools you can call from any MCP client (Claude Desktop, Claude Code, Cursor, and other agents).

Ask an agent "does ChatGPT recommend my business?", "what's my AI-visibility score?", "audit example.com", or "how do I stack up against my competitors?" and it answers with real data — an overall AI-visibility score (0–100), a per-engine breakdown across ChatGPT, Perplexity, Claude and Gemini, a full site audit (SEO, security, performance), competitor comparisons, and ongoing monitoring.

The server is a thin, authenticated wrapper over the Website Auditor API — the audit engine, AI-visibility scoring and monitoring live in that service; this server just makes them available to agents.

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Tools

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Install & configure

The server runs directly via npx — no clone or build required. Add it to your MCP client's config with your API key.

Claude Desktop (claude_desktop_config.json), Cursor (~/.cursor/mcp.json), and most other clients use the same mcpServers shape:

{
  "mcpServers": {
    "website-auditor": {
      "command": "npx",
      "args": ["-y", "@spikeycoder/website-auditor-mcp"],
      "env": {
        "WA_API_KEY": "wa_your_key_here"
      }
    }
  }
}

Claude Code — add it from the CLI:

claude mcp add website-auditor -e WA_API_KEY=wa_your_key_here -- npx -y @spikeycoder/website-auditor-mcp

Restart the client and the tools appear.

Getting an API key

WA_API_KEY is a per-user key (it starts with wa_) minted from a Website Auditor account at website-auditor.io. Free tools work with any valid key; Pro tools require an account with an active subscription. Treat the key like a password — set it only in your MCP client's env and never commit it.

Configuration (environment variables)

Only WA_API_KEY is normally needed; the rest have sensible defaults. See .env.example for the full list.

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Auth & tiers

Your key is validated on every call. The Pro/free tier is resolved live from the API and cached briefly, so upgrades and downgrades take effect within about a minute:

• No key → free tools return AUTH_REQUIRED, Pro tools return PRO_REQUIRED. Both include an upgrade link.
• Free (valid key, no active subscription) → free tools work, subject to per-day metering; Pro tools return PRO_REQUIRED.
• Pro (active or trialing subscription) → all tools, metering bypassed.

Errors are normalized to stable codes agents can branch on — e.g. AUTH_REQUIRED, INVALID_KEY, PRO_REQUIRED, OVER_QUOTA, UNREACHABLE_DOMAIN, INVALID_INPUT, TIMEOUT. A domain that can't be reached returns UNREACHABLE_DOMAIN — never a fabricated score.

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Develop

npm install
npm run build      # compile TypeScript → dist/
npm start          # serve over stdio
npm run dev        # run from source without building
npm test           # vitest
npm run typecheck

The suite is hermetic — the API client, subscription provider and meter are injected, and HTTP is mocked at the fetch boundary, so no network is touched.

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Privacy Policy

This connector talks to a single external service: the Website Auditor API at website-auditor.io. When you invoke a tool it sends only two things to that API:

• the target domain you asked to audit or monitor, and
• your API key (WA_API_KEY), used to authenticate the request and resolve your plan tier.

That's the full extent of what leaves your machine. The connector does not collect, store, or transmit your files, prompts, conversation content, or any other personal data, and it does not send data to any third party beyond the Website Auditor API. Your API key is held only in your MCP client's configuration (in Claude Desktop it is stored in the OS keychain and injected as an environment variable); it is never written to the bundle or logged.

Anonymous, aggregate usage telemetry (which tool ran, success/failure, latency — no domains, no keys, no personal data) may be emitted to improve the service, and can be disabled entirely by setting WA_METRICS_DISABLED=1.

Full privacy policy: https://website-auditor.io/privacy

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License

Elastic License 2.0 — © 2026 Kevin Armstrong / SpikeyCoder.

Learn more at website-auditor.io.