The AI Search Visibility API

Does ChatGPT recommend your brand? Does Google's AI cite your website? One POST request answers both — for any brand, in any of four markets. Built on the same engine that powers SEMPITE's paid audits.

Get a free API key Read the docs

Free tier: 10 checks/month · no credit card

curl -X POST https://sempite.com/api/v1/visibility/check \
  -H "Authorization: Bearer sk_live_..." \
  -H "Content-Type: application/json" \
  -d '{"brand": "Acme Dental", "domain": "acmedental.com", "market": "us"}'

{
  "engines": {
    "chatgpt":   {"present": true,  "cites_site": false, "snippet": "..."},
    "google_ai": {"present": true,  "cites_site": true,  "snippet": "..."}
  },
  "visibility_score": 100
}
01

Get a key

Enter your email below — your key arrives instantly with 10 free checks a month.

02

POST a brand

Send any brand name, optional website and market (US, UK, ES, MX). Custom prompts supported — "best dentist in Austin" works too.

03

Get the verdict

Live presence, website citation, the AI's actual answer snippet, and a 0–100 visibility score. JSON in, JSON out.

Who uses it

Agencies monitor every client's AI-search presence weekly and put the trend in reports. SaaS teams add an "AI visibility" widget to their product without building engine plumbing. Consultants qualify prospects in seconds — a brand invisible to ChatGPT is a brand that needs you.

Prefer it done for you? That's literally our job — see SEMPITE services or start with the free visibility check.

What is an AI search visibility API?

An AI search visibility API is a programmatic way to answer one question at scale: when someone asks an AI assistant about a problem you solve, does your brand come up? Instead of manually asking ChatGPT, Perplexity, and Gemini one at a time — and getting answers you can't log, compare, or chart — you send one HTTP request and get structured JSON back: is the brand present, is its website cited, and what the engine actually said.

The reason this category exists: AI assistants now sit in front of a meaningful share of buying decisions, and they answer with one or two recommendations instead of ten blue links. Traditional rank trackers can't see into those answers at all. An AI search visibility API is the measurement layer for the channel SEO tools don't cover.

What one check returns

Every check queries the engines live — no cached index, no estimates — and returns four things per engine:

Responses are plain JSON with stable field names, so a check you run today diffs cleanly against the one you run next quarter.

An API, not another dashboard

Most AI visibility products — Otterly, Profound, the enterprise suites — are dashboards: you log in, look at charts, and pay per seat. That's the right shape when the report itself is the product. This is the other shape: raw JSON you pipe into whatever you're actually building — a client report generator, a white-label feature in your SaaS, a weekly cron job that emails you when a competitor starts showing up in ChatGPT's answers. No seats, no UI to learn, and quota-based pricing that starts at free.

It's the same engine SEMPITE uses to run its paid brand audits and publish original AI-visibility research — productized as an endpoint.

An LLM SEO analysis tool you can automate

Searches for an "LLM SEO analysis tool" usually mean one question: how do ChatGPT, Google AI, Perplexity, and Claude describe and cite my brand, and is that changing? This API is the programmatic version of that analysis. One call returns, per engine, whether the brand is mentioned, how it is described, which sources were cited, and a visibility score you can store. Put it on a schedule and you have LLM SEO analysis software that runs itself: weekly checks per client, a trend line instead of a screenshot, and an alert when an engine stops naming you. The free AI Citation Checker is the one-off version of the same check.

White-label AI visibility for agencies

If you run an SEO, PR, or marketing agency, your clients are already asking whether ChatGPT recommends them — and most agencies answer by screenshotting a chat window. The API lets you answer with a number, under your own brand. Pull prompt coverage (the share of buyer questions where a client is named), citation rate (how often the answer links their site), and the per-engine visibility score into your existing reports, dashboard, or client portal. No SEMPITE branding in the JSON, no per-seat pricing, no minimums.

Need volume beyond Pro, or a done-for-you fulfillment partner behind your brand? Email the founder directly — that's who answers.

Built on the same data we publish

The API tracks the surfaces our studies measure. The research below is the public version of what the endpoints return.

43%of Google top-3 businesses ChatGPT never mentionsAI Visibility Index → 5.1%of AI citations go to brand-owned sitesWho Google’s AI Recommends in Sports Nutrition → 6.9%of local repair searches get an AI answerGoogle’s AI Skips Local Car Repair Searches →

Read all 11 studies →

Pricing

Free

$0
10 checks / month
Get free key

Starter

$29/mo
250 checks / month

Pro

$99/mo
1,000 checks / month

Get your free API key

10 checks a month, forever free. Key arrives by email in seconds.

FAQ

What is an AI search visibility API?

An API that programmatically checks whether AI search engines like ChatGPT, Google AI, Perplexity, Gemini, and Claude mention a brand in their answers — and whether they cite the brand's website. One POST request returns presence, citation, a response snippet, and a visibility score.

Which AI engines does it check?

Five engines — ChatGPT, Google AI Mode, Perplexity, Gemini, and Claude (free plan: the first two; paid plans: all five) — queried live per request in the market and language you choose (US, UK, Spain, Mexico). More engines are added as they become reliably queryable.

Is there a free tier?

Yes — a free API key includes 10 checks per month, no credit card required. Paid plans start at $29/month for 250 checks.

Who is this API for?

Agencies monitoring client brands in AI search, SaaS teams adding AI-visibility widgets to their dashboards, and consultants doing prospect research at scale. If you need it done for you instead, SEMPITE offers full AI search visibility services.

How is a check counted?

One check = one brand lookup, regardless of how many engines you query in that request. Quotas reset monthly.

How do I check my brand's AI search visibility?

Three ways: ask each engine manually (slow, and you can't compare runs), use the free visibility check for a one-off snapshot, or call this API on a schedule and keep the JSON — the only option that gives you a trend line you can put in a report or a product.

What is a good AI visibility score?

The score reflects how many of the queried engines mention the brand and whether they cite its website. Most small businesses score low on their first check — the engines simply haven't learned them yet. The direction over time matters more than the absolute number: a score that climbs after publishing structured, citable content is the signal the work is landing.

Can I track AI search visibility over time?

Yes — that's the main reason to use an API instead of a one-off checker. Run the same brand on a weekly or monthly schedule, store the JSON, and you have a real trend line. Starter's 250 checks/month covers weekly tracking of roughly 60 brands.

Is this LLM SEO analysis software?

Yes, in API form. An LLM SEO analysis tool checks how large language model search engines (ChatGPT, Google AI, Perplexity, Claude, Gemini) describe and cite a brand. This API returns that per engine as JSON (mentioned or not, description, cited sources, score), so you can run it on a schedule, store the history, and build your own reports on top. The free AI Citation Checker is the single-check version.

How is this different from AI visibility tracking tools?

Tools like Otterly or Profound are dashboards you log into, priced per seat. This is an API: raw JSON for your own reports, products, and automations, priced by quota with a free tier. If you want charts without writing code, a dashboard is the better buy; if the data needs to end up inside something you build, that's what an API is for.

Get a free API key

Docs at /api/v1/docs · questions → hello@sempite.com

ES