How It Works
One API call. Four AI engines. Complete citation data.
AI-powered search is reshaping how users discover brands online. Google AI Overviews, ChatGPT with browsing, Claude with web search, and Perplexity are all citing sources in their answers. Serpent's AI Rank API lets you query all four engines simultaneously, returning structured citation data with normalized visibility scores so you can track your AI presence over time.
Supported Engines
Track citations across every major LLM
Each engine offers different strengths. Compare features, pricing, and citation depth to choose the right engines for your use case.
- OpenAI Responses API
- Bing web search citations
- Cited text excerpts
- Token usage tracking
- Visibility scoring
- Brave Search citations
- 10-27 citations per query
- Rank position tracking
- Mention context
- High accuracy reasoning
- Google Search grounding
- Brand mention detection
- Sentiment analysis
- Real-time web data
- Best for high-volume
- Search-native LLM
- 10-30+ citations/query
- Deepest citation analysis
- Real-time web grounding
- Highest citation reliability
Combined query across all 4 engines: Default $44.20/1K | Growth $34.38/1K | Scale $24.56/1K. 100 free searches included with every account.
AI Visibility Score
Quantify your AI presence with a single metric
The visibility score is a composite 0-100 metric that makes it easy to track AI brand presence over time and compare against competitors.
Use Cases
Built for teams that take AI visibility seriously
SEO Teams
Track how AI Overviews and LLM answers reference your pages. Measure the impact of content changes on AI citations. Build dashboards that show organic + AI visibility side by side.
Brand Monitoring
Know when ChatGPT or Claude recommends your brand -- or your competitor. Set up automated queries to track brand sentiment and citation frequency across all major LLMs.
Competitive Intelligence
Compare your AI visibility score against competitors for your target keywords. Identify which content earns AI citations and reverse-engineer the strategy.
Quick Start
Get AI citations in seconds
A single cURL request returns structured citation data from all four AI models.
curl "https://apiserpent.com/api/ai-rank?q=best+project+management+tools&engines=chatgpt,claude,gemini,perplexity" \
-H "X-API-Key: YOUR_API_KEY"
# Response (abbreviated)
{
"query": "best project management tools",
"results": {
"chatgpt": {
"citations": [
{ "url": "https://example.com/tools", "title": "Top PM Tools 2026", "cited_text": "..." }
],
"visibility_score": 72
},
"claude": {
"citations": [...],
"visibility_score": 65
},
"gemini": { ... },
"perplexity": { ... }
},
"combined_visibility_score": 68
}
FAQ
Frequently asked questions
AI mention tracking monitors how large language models like ChatGPT, Claude, Gemini, and Perplexity reference and cite your brand, products, or content when answering user queries. It provides visibility into AI-driven search results that traditional SEO tools cannot measure.
Serpent API tracks citations across four major LLMs: OpenAI ChatGPT (via Responses API with web search), Anthropic Claude (via web_search tool with Brave Search), Google Gemini (via grounding with Google Search), and Perplexity (via Sonar API with inline citations).
The visibility score is a 0-100 metric calculated from four factors: citation presence (whether the AI mentioned your brand), citation position (higher-ranked citations score more), citation frequency (how many times cited across responses), and source authority (prominence of the cited URL in the response).
Yes. You can query any brand or domain across all four LLMs and compare citation counts, positions, and visibility scores. Many customers use this for competitive intelligence to understand how AI models perceive their brand versus competitors.
A combined query across all four engines starts at $24.56 per 1,000 requests on the Scale tier. Default tier: $44.20/1K, Growth tier: $34.38/1K, Scale tier: $24.56/1K. Individual Scale prices: ChatGPT $5.56/1K, Claude $6.67/1K, Gemini $1.22/1K, Perplexity $11.11/1K. All new accounts get 100 free searches.
Start tracking your AI visibility today
Sign up and get 100 free searches. No credit card required. See exactly how AI models cite your brand.