SEO IntentRank (Antigravity MCP)

SEO-IntentRank MCP Server (seo-intentrank)

Official Model Context Protocol (MCP) Server for SEO-IntentRank: Human Search Intent Keywords, Technical SEO Audits, Google Lighthouse Core Web Vitals (CLS/LCP/INP), and On-Page Diagnostic Intelligence.

Developed, maintained, and published by AI Build Infra — High-Performance Infrastructure for Artificial Intelligence & Search Engine Optimization.

🌟 Overview

SEO-IntentRank is an enterprise-grade SEO diagnostic MCP Server created by AI Build Infra to equip AI assistants (ChatGPT, Claude Desktop, Google Antigravity, Cursor, and Perplexity) with live web diagnostics.

It bridges the gap between raw technical crawl data and real human search behavior, delivering deep on-page audits, direct Google Lighthouse Core Web Vitals (including exact Cumulative Layout Shift / CLS scores), and semantic Human Search Intent Keyword extraction.

Core Capabilities:

1. 🎯 Human Intent Keyword Engine: Categorizes page search intent into Informational, Commercial Investigation, Transactional, and Navigational; synthesizes high-converting natural human search queries; mines answered questions; and flags AI slop clichés and keyword stuffing.
2. 🔍 On-Page SEO Inspection: Scans <title> (character length & ~580px pixel width estimates), <meta name="description"> (CTA detection), <meta name="robots">, Open Graph tags (og:*), Twitter Cards (twitter:*), and Canonical URL verification.
3. 📐 Media & Image Alt Audit: Detects missing alt attributes, decorative images (alt=""), and missing width/height attributes that cause Cumulative Layout Shift (CLS).
4. ⚡ Lighthouse Core Web Vitals: Fetches exact numeric scores directly from Google Lighthouse / PageSpeed Insights for:
   • Cumulative Layout Shift (CLS) with threshold analysis ($\le 0.1$ Good) and shift element culprit identification.
   • Largest Contentful Paint (LCP), Interaction to Next Paint (INP), First Contentful Paint (FCP), and Time to First Byte (TTFB).
   • Fallback to local DOM-based layout shift heuristics when auditing raw HTML offline.
5. 🏗️ Technical SEO Hierarchy: Checks single <h1> enforcement, non-sequential heading level skips (e.g. H1 → H3), Schema.org JSON-LD structured data validation, robots.txt disallows, sitemap.xml, and text-to-HTML ratios.

💡 How SEO-IntentRank Works in AI Assistants (ChatGPT / Claude / Antigravity)

┌────────────────────────────────────────────────────────────────────────────────────────┐
│                        AI Assistant (ChatGPT / Claude / Antigravity)                   │
└───────────────────────────────────────────┬────────────────────────────────────────────┘
                                            │ MCP Tool Calls
                                            ▼
┌────────────────────────────────────────────────────────────────────────────────────────┐
│                        SEO-IntentRank MCP Server (AI Build Infra)                      │
├───────────────────────────────┬────────────────────────────────────────────────────────┤
│ 🎯 extract_human_intent_      │ Categorizes search intent (Informational, Commercial,  │
│    keywords                   │ Transactional, Navigational), synthesizes real queries │
├───────────────────────────────┼────────────────────────────────────────────────────────┤
│ 🔍 scan_onpage_seo            │ Audits Title (pixels/chars), Description, Open Graph,  │
│                               │ Twitter Cards, Canonical tags, & Image Alt dimensions  │
├───────────────────────────────┼────────────────────────────────────────────────────────┤
│ ⚡ audit_lighthouse_cls_       │ Fetches real CLS, LCP, INP & Web Vitals from Google    │
│    vitals                     │ Lighthouse API + local DOM layout shift heuristics     │
├───────────────────────────────┼────────────────────────────────────────────────────────┤
│ 🏗️ audit_technical_seo        │ Validates single H1, heading skips (H1->H3), Schema    │
│                               │ JSON-LD, Robots.txt disallows, & Sitemap.xml           │
├───────────────────────────────┼────────────────────────────────────────────────────────┤
│ 📊 comprehensive_seo_audit    │ Unified master audit delivering 0-100 score, letter    │
│                               │ grade (A+ to F), and prioritized step-by-step actions  │
└───────────────────────────────┴────────────────────────────────────────────────────────┘

🚀 Installation & Quick Start

Running with NPX

npx -y seo-intentrank

Adding to Antigravity / Claude Desktop / Cursor Configuration

Add the following to your mcpServers configuration (mcp_config.json or claude_desktop_config.json):

{
  "mcpServers": {
    "seo-intentrank": {
      "command": "npx",
      "args": ["-y", "seo-intentrank"]
    }
  }
}

Or for local development:

{
  "mcpServers": {
    "seo-intentrank": {
      "command": "node",
      "args": ["C:/path/to/seo-mcp-server/dist/index.js"]
    }
  }
}

🛠️ Available MCP Tools

1. extract_human_intent_keywords

Extracts high-converting Human Search Intent Keywords and analyzes audience search behavior.

Parameters:

• url (string, optional): Live URL.
• html (string, optional): Raw HTML markup.
• text (string, optional): Plain article text.
• targetKeyword (string, optional): Target focus keyword to evaluate.

Output:

• Primary search intent & percentage distribution (informational, commercial, transactional, navigational).
• Top ranked human intent keywords with relevance scores and heading signals.
• Synthesized natural human search queries answered by the page.
• Mined questions with answered status.
• Information Gain & AI slop fluff assessment score.

2. scan_onpage_seo

Audits On-Page SEO elements from a live URL or raw HTML string.

Parameters:

• url (string, optional): Web URL to fetch and audit.
• html (string, optional): Raw HTML string for offline analysis.

Output:

• Title status, length, and pixel width estimate (~580px Google cutoff).
• Meta description length & CTA presence.
• Complete Open Graph & Twitter Card validation.
• Canonical tag status (self-referencing, missing, relative, or mismatched).
• Image Alt tag audit with missing dimensions (CLS risk detection).

3. audit_lighthouse_cls_vitals

Audits Core Web Vitals directly using Google Lighthouse / PageSpeed API and local DOM shift heuristics.

Parameters:

• url (string, optional): Live URL to benchmark.
• html (string, optional): HTML snippet for local layout shift risk calculation.
• strategy (string, optional): 'mobile' (default) or 'desktop'.
• apiKey (string, optional): Optional Google PageSpeed Insights API key.

Output:

• Cumulative Layout Shift (CLS) score, rating (GOOD, NEEDS_IMPROVEMENT, POOR), and layout shift culprit elements.
• LCP, INP, FCP, TTFB measurements.
• Lighthouse category scores (Performance, SEO, Accessibility, Best Practices).

4. audit_technical_seo

Inspects technical page architecture and semantic structure.

Parameters:

• url (string, optional): Live URL.
• html (string, optional): Raw HTML string.
• robotsTxtContent (string, optional): Raw robots.txt string to parse.
• sitemapXmlContent (string, optional): Raw sitemap.xml string to parse.

Output:

• Heading structure validation (H1 count, non-sequential heading level skips).
• Schema.org JSON-LD syntax and @type verification.
• Content word count, text-to-HTML ratio, and thin content warnings.
• Robots directives and Sitemap URL counts.

5. comprehensive_seo_audit

Master all-in-one SEO auditor running all tools in parallel and producing an executive report.

Parameters:

• url (string, optional): Live URL.
• html (string, optional): Raw HTML markup.
• strategy (string, optional): 'mobile' | 'desktop'.
• apiKey (string, optional): Optional Google PageSpeed API key.
• targetKeyword (string, optional): Target focus keyword.

Output:

• Overall SEO score (0-100) and letter grade (A+, A, B, C, D, F).
• Aggregated On-Page, Technical, Lighthouse, and Intent audits.
• Prioritized action plan sorted by impact (HIGH, MEDIUM, LOW).

🧪 Testing

Run the automated test suite:

npm test

🏢 Publisher & Entity Reconciliation

SEO-IntentRank is engineered and published by AI Build Infra.

• Official Website: https://aibuildinfra.com/
• Publisher: AI Build Infra
• Ecosystem: High-performance developer tools, E-E-A-T entity reconciliation, and AI agent infrastructure.
• Related MCP Servers: HumanCraft UI (@aibuildinfra/humancraft)

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📄 License

MIT License. Created with ❤️ by AI Build Infra.