LLM Mentions API
Find where your brand, domain, or keyword shows up in ChatGPT and Google AI Overviews. Search a pre-indexed corpus of 253M+ LLM prompts from $0.20/call.
Search a pre-indexed corpus of LLM answers for any domain or keyword across ChatGPT and Google AI Overviews. Get the actual AI-generated answers, the sources they cite, AI search volume per question, mentioned brand entities, and the fan-out queries the LLM derived from the original prompt — far cheaper than re-scraping LLMs live and 100× the coverage.
Try it live
Fill in the fields and hit Run to see a real response.
{
"ok": true,
"data": {
"platform": "google",
"totalCount": 1842,
"itemsCount": 1,
"currentOffset": 0,
"searchAfterToken": "eyJDdXJyZW50T2Zmc2V0IjoxLC...",
"mentions": [
{
"platform": "google",
"modelName": "google_ai_overview",
"locationCode": 2840,
"languageCode": "en",
"question": "what is the best seo api",
"answer": "Several SEO APIs stand out in 2026, including YepAPI for keyword research and SERP data...",
"sources": [
{
"position": 1,
"title": "Keywords API — YepAPI",
"url": "https://yepapi.com/seo-api/keywords",
"domain": "yepapi.com",
"sourceName": "YepAPI",
"snippet": "Bulk keyword metrics: search volume, CPC, competition, difficulty, intent...",
"thumbnail": null,
"markdown": null,
"publicationDate": null
}
],
"searchResults": null,
"aiSearchVolume": 1200,
"monthlySearches": [
{
"year": 2026,
"month": 4,
"searchVolume": 1200
},
{
"year": 2026,
"month": 3,
"searchVolume": 980
}
],
"firstResponseAt": "2026-02-11 08:14:00 +00:00",
"lastResponseAt": "2026-05-15 22:41:00 +00:00",
"brandEntities": null,
"fanOutQueries": null
}
]
}
}Features
Use cases
AI Visibility Tracking
Audit every prompt where your domain shows up as a cited source in Google AI Overviews and ChatGPT — track share-of-voice against competitors.
Competitor LLM Audit
See which competitor domains the LLMs cite for your target keywords, then reverse-engineer the content earning those citations.
Prompt Discovery
Surface every AI-search question driving traffic to your category — `aiSearchVolume` ranks them by demand.
Brand Mention Monitoring
Use `brandEntities` to find every AI answer where your brand is mentioned, even when your domain isn't cited.
Quick start
Copy this snippet and start making calls.
const res = await fetch('https://api.yepapi.com/v1/seo/ai/llm-mentions', {
method: 'POST',
headers: {
'x-api-key': 'YOUR_API_KEY',
'Content-Type': 'application/json',
},
body: JSON.stringify({
"target": [
{
"domain": "yepapi.com",
"search_filter": "include"
},
{
"keyword": "seo api",
"search_scope": [
"answer"
]
}
],
"platform": "google",
"location": "us",
"language": "en",
"limit": 100,
"filters": [
[
"ai_search_volume",
">",
100
]
],
"order_by": [
"ai_search_volume,desc"
]
}),
});
const data = await res.json();
console.log(data);What developers say
“Switched from SerpAPI and cut our SERP costs by 80%. Same data quality, way simpler billing.”
“One API key for AI models, SERP data, and web scraping. Saved us from managing 4 separate providers.”
“The $5 free credit let us prototype our entire rank tracking feature before committing. No other API does that.”
Frequently asked questions
Search a pre-indexed corpus of LLM answers for any domain or keyword across ChatGPT and Google AI Overviews. Get the actual AI-generated answers, the sources they cite, AI search volume per question, mentioned brand entities, and the fan-out queries the LLM derived from the original prompt — far cheaper than re-scraping LLMs live and 100× the coverage.
Each API call costs $0.20 (+$0.002 per row returned). No monthly minimums or subscriptions — you only pay for what you use.
Sign up for a free API key, then send a POST request to /v1/seo/ai/llm-mentions. Check the code example above for a ready-to-use snippet in JavaScript, cURL, or Python.
YepAPI bundles SEO, AI, and web scraping APIs under one key with no monthly minimums. You get lower per-call pricing, a unified dashboard, and one billing account instead of managing multiple providers.
Ready to integrate?
Get your API key and start making calls in 30 seconds. $5 free credit on signup — no credit card required.
More seo apis endpoints
Keywords
$0.15Keyword research API with search volume, CPC, difficulty, competition, and 12-month trends. Up to 100 keywords per request from $0.15/call.
Keyword Ideas
$0.02Generate hundreds of keyword ideas from any seed keyword with volume, CPC, and difficulty scores. Content planning and topic expansion from $0.03/call.
Related Keywords
$0.02Discover semantically related keywords and variations with volume, CPC, and difficulty. Build topical authority from $0.03/call.
