How It Works
One API call. Four AI engines. Complete citation data.
AI-powered search is reshaping how users discover brands online. ChatGPT, Claude, Gemini, and Perplexity can all cite sources in their answers. Serpent's AI Rank API lets you query all four engines in a single call, 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
All four engines are the same price and return the same citation depth — pick the ones whose answers you care about, or query all four in one call.
- ChatGPT citation tracking
- Source URL extraction
- Up to 10 citations per query (15 with prompt_type=deep)
- Cited text excerpts
- Token usage tracking
- Source citation data
- Up to 10 citations per query (15 with prompt_type=deep)
- Rank position tracking
- Mention context
- High accuracy reasoning
- Source URL extraction
- Brand mention detection
- Up to 10 citations per query (15 with prompt_type=deep)
- Rank position tracking
- Visibility scoring
- Source URL extraction
- Up to 10 citations per query (15 with prompt_type=deep)
- Cited text excerpts
- Citation and mention fields
- Token usage tracking
Combined query across all 4 engines: Default $40.00/1K | Growth $4.00/1K | Scale $2.00/1K. AI Ranking is free-eligible — it draws from the shared 10-call free pool, then bills per call. A run in which every engine failed is refunded; a completed run is charged.
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. Pass domain to get a visibility score — without it, visibility_score is null.
curl "https://apiserpent.com/api/ai/rank?keyword=best+project+management+tools&domain=example.com&engines=chatgpt,claude,gemini,perplexity" \
-H "X-API-Key: YOUR_API_KEY"
# Response (abbreviated)
{
"success": true,
"run_id": "air_8f3c21d0",
"keyword": "best project management tools",
"target_domain": "example.com",
"results": {
"chatgpt": {
"llm": "chatgpt",
"model": "GPT-5.5",
"citations": [
{
"position": 1,
"url": "https://example.com/tools",
"title": "Top PM Tools 2026",
"cited_text": "... teams consistently rank it first [1] ..."
}
],
"serp_results": [ ... ],
"response_text": "For most teams the strongest options are ...",
"token_usage": { "prompt_tokens": 1284, "completion_tokens": 612, "total_tokens": 1896 },
"latency_ms": 8412
},
"claude": { "model": "Claude Sonnet 4.6", ... },
"gemini": { "model": "Gemini 3.1 Pro", ... },
"perplexity": { "model": "Sonar Pro", ... }
},
"aggregate": {
"visibility_score": 68,
"found_in": ["chatgpt", "claude", "perplexity"],
"best_position": { "engine": "chatgpt", "position": 1 },
"all_domains_cited": ["asana.com", "example.com", "monday.com"],
"total_latency_ms": 21740
}
}
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 AI engines: ChatGPT, Claude, Gemini, and Perplexity. Responses are normalized into one JSON shape for brand visibility analysis.
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 costs $40.00 per 1,000 requests on the Default tier, $4.00/1K on Growth with a one-time $100 deposit, and $2.00/1K on Scale with a one-time $500 deposit. Each individual engine bills $20.00/1K Default, $2.00/1K Growth, $1.00/1K Scale — the same rate across all four. AI Ranking is free-eligible — it draws from the shared 10-call free pool, then bills per call. A run in which every engine failed is refunded; a completed run is charged.
Start tracking your AI visibility today
Add credits to run AI Ranking checks and see how AI models cite your brand.
