Houtini GEO Analyzer

npm version License: MIT

Content analysis for AI search visibility. Measures what actually matters for getting cited by ChatGPT, Claude, Perplexity, and Google AI Overviews.

Quick Navigation

What it does | Installation | Usage examples | Output | Tools | Troubleshooting | Research foundation

What It Does

GEO Analyzer examines content for the signals AI systems use when selecting sources to cite:

• Claim Density - Extractable facts per 100 words
• Information Density - Word count vs predicted AI coverage
• Answer Frontloading - How quickly key information appears
• Semantic Triples - Structured (subject, predicate, object) relationships
• Entity Recognition - Named entities AI can reference
• Sentence Structure - Optimal length for AI parsing

The analysis runs locally using Claude Sonnet 4.5 for semantic extraction. No external services, no data leaving your machine.

Installation

Claude Desktop

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "geo-analyzer": {
      "command": "npx",
      "args": ["-y", "@houtini/geo-analyzer@latest"],
      "env": {
        "ANTHROPIC_API_KEY": "sk-ant-..."
      }
    }
  }
}

Config locations:

• Windows: %APPDATA%\Claude\claude_desktop_config.json
• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Linux: ~/.config/Claude/claude_desktop_config.json

Restart Claude Desktop after saving.

Claude Code (CLI)

Claude Code uses a different registration mechanism -- it doesn't read claude_desktop_config.json. Use claude mcp add instead:

claude mcp add -e ANTHROPIC_API_KEY=sk-ant-... -s user geo-analyzer -- npx -y @houtini/geo-analyzer@latest

Verify with:

claude mcp get geo-analyzer

You should see Status: Connected.

Requirements

• Node.js 20+
• Anthropic API key (console.anthropic.com)

Usage Examples

Analyse a Published URL

Analyse https://example.com/article for "topic keywords"

The topic context helps score relevance but isn't required:

Analyse https://example.com/article

Analyse Text Directly

Paste content for analysis (minimum 500 characters):

Analyse this content for "sim racing wheels":

[Your content here]

Summary Mode

Get condensed output without detailed recommendations:

Analyse https://example.com/article with output_format=summary

Output

Scores (0-10)

Score	Measures
Overall	Weighted average of all factors
Extractability	How easily AI can extract facts
Readability	Structure quality for AI parsing
Citability	How quotable and attributable

Key Metrics

Information Density:

• Word count with coverage prediction
• Optimal range: 800-1,500 words
• Pages under 1K words: ~61% AI coverage
• Pages over 3K words: ~13% AI coverage

Answer Frontloading:

• Claims and entities in first 100/300 words
• First claim position
• Score indicating answer immediacy

Claim Density:

• Target: 4+ claims per 100 words
• Extractable facts, statistics, measurements

Sentence Length:

• Target: 15-20 words average
• Matches Google's ~15.5 word chunk extraction

Recommendations

Prioritised suggestions with:

• Specific locations in content
• Before/after examples
• Rationale based on research

Tools

analyze_url

Fetches and analyses published web pages.

Parameter	Required	Description
url	Yes	URL to analyse
query	No	Topic context for relevance scoring
output_format	No	detailed (default) or summary

analyze_text

Analyses pasted content directly.

Parameter	Required	Description
content	Yes	Text to analyse (min 500 chars)
query	No	Topic context for relevance scoring
output_format	No	detailed (default) or summary

Troubleshooting

"ANTHROPIC_API_KEY is required" Add your API key to the env section in config.

"Cannot find module" after config change Restart Claude Desktop completely.

"Content too short" Minimum 500 characters required for meaningful analysis.

Paywalled content returns errors The analyser can only access publicly available pages.

Performance

• URL analysis: ~8-10 seconds
• Text analysis: ~5-7 seconds
• Cost: ~$0.14 per analysis (Sonnet 4.5)

Migration from v1.x

v2.0 removed external dependencies. Update your config:

Old (v1.x):

{
  "env": {
    "GEO_WORKER_URL": "https://...",
    "JINA_API_KEY": "jina_..."
  }
}

New (v2.x):

{
  "env": {
    "ANTHROPIC_API_KEY": "sk-ant-..."
  }
}

Development

git clone https://github.com/houtini-ai/geo-analyzer.git
cd geo-analyzer
npm install
npm run build

Research Foundation

The analysis methodology draws from peer-reviewed research and empirical studies:

MIT GEO Paper (2024)

Aggarwal et al., "GEO: Generative Engine Optimization" - ACM SIGKDD

Key findings applied:

• Claim density target of 4+ per 100 words
• Optimal sentence length of 15-20 words
• 40% improvement in AI citation rates with extractability focus

arxiv.org/abs/2311.09735

Dejan AI Grounding Research (2025)

Empirical analysis of 7,060 queries and 2,275 pages

Key findings applied:

• ~2,000 word total grounding budget per query
• Rank #1 source gets 531 words (28% of budget)
• Rank #5 source gets 266 words (13% of budget)
• Average extraction chunk: 15.5 words
• Pages <1K words: 61% coverage
• Pages 3K+ words: 13% coverage

dejan.ai/blog/how-big-are-googles-grounding-chunks
dejan.ai/blog/googles-ranking-signals

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MIT License - Houtini.ai