seo-mcp

An SEO MCP server — a stdio Model Context Protocol server that gives an AI host a set of SEO tools. The MVP is 100% free and keyless: on-page/technical audits, robots.txt, sitemaps, structured data, broken-link checks, and keyword ideas.

Built on the same proven scaffold as chrome-mcp: SDK Server → StdioServerTransport, a flat tool registry, and a never-throw dispatch firewall.

Tools (all free, no API key)

Related MCP server: mcp-seo-auditor

Install & build

npm install
npm run build      # → dist/src/cli.js

Use it as an MCP server

Add to your MCP host config (e.g. a project .mcp.json):

{
  "mcpServers": {
    "seo-mcp": {
      "type": "stdio",
      "command": "node",
      "args": ["/Users/mehmoodqureshi/Work/seo-mcp/dist/src/cli.js"]
    }
  }
}

If the package is installed (globally or via npx), use the published seo-mcp bin instead of a node + path — no build step or absolute path needed:

{
  "mcpServers": {
    "seo-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": ["-y", "@mehmoodqureshi/seo-mcp"]
    }
  }
}

Or, after npm install -g @mehmoodqureshi/seo-mcp, set "command": "seo-mcp" with no args.

Then ask things like "audit https://example.com for SEO" or "what does example.com's robots.txt block?".

Quick smoke test (no MCP host needed)

node -e "require('./dist/src/seo/audit').auditPage('https://example.com').then(r=>console.log(JSON.stringify(r,null,2)))"

Develop

npm run typecheck   # tsc --noEmit
npm run build       # → dist/
npm test            # node:test suite (no network — fetch is stubbed)

CI (.github/workflows/ci.yml) runs typecheck → build → test on Node 20/22. Node 20+ is required (cheerio 1.x depends on undici, which needs the global File added in Node 20).

Performance & output size

• Request caching — identical GETs are de-duplicated by a short-TTL cache with in-flight coalescing, so a audit_page → export_audit_pdf pair (or a sitemap/robots.txt referenced during a crawl) hits the network once. Tune with SEO_MCP_CACHE_TTL_MS (milliseconds, default 15000); set 0 to disable.

• Compact audit_site — by default the site audit returns a slim, worst-first per-page table (score + issue counts) plus the aggregates, to keep the response small inside an MCP host's context. Pass detail: true for the full per-page breakdown, or use export_site_pdf for a formatted report.

PageSpeed (optional key)

The pagespeed tool works keyless but Google rate-limits anonymous requests. To raise the quota, grab a free PageSpeed Insights API key and set it in your MCP host config:

{
  "mcpServers": {
    "seo-mcp": {
      "type": "stdio",
      "command": "node",
      "args": ["/Users/mehmoodqureshi/Work/seo-mcp/dist/src/cli.js"],
      "env": { "PAGESPEED_API_KEY": "your-key-here" }
    }
  }
}

Roadmap (needs a key — not in the free MVP)

• serp_rank — real SERP position checks (drive a browser, or a paid SERP API)

• domain_authority — OpenPageRank (free key) for an authority score

• backlinks — real backlink profiles (paid: Ahrefs / SEMrush / DataForSEO)

License

MIT