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LLM Visibility API Integration

The LLM Visibility API for brands that need to know where they stand
in AI Search and GEO.

Programmatic access to brand visibility data across every major generative AI engine. Integrate LLM visibility metrics into your dashboards, automate GEO reporting workflows, and build intelligence tools on top of real AI search data.

ChatGPTGoogle AIOPerplexityCopilotGeminiGrok
Read the DocsSee Plans
RESTful API
Bearer Auth
JSON Responses
Promptprompts[0] · /api/v1/prompts
best liquid blushMissingPerplexity
Overall SoA
0.0%-66.7%
Avg. Pos
-not mentioned
Responses
3last run Oct 02
Prompt gapsprompt_gaps.brands
BrandSoAAvg. PosSoM
Rare Beauty100.0%1.041.7%
Fenty Beauty66.7%2.029.2%
Sephora33.3%3.012.5%
Glossiernot in the answer0.0%-0.0%
Sources Perplexity citessource_prominence
allure.com38%byrdie.com25%reddit.com19%
"status": "missing", "overall_soa": 0.0, "overall_soa_delta": -66.7,
"soa_per_model": { "perplexity": 0.0 }
Pull the same metrics into your own stack and act on them. Illustrative data.
What the API delivers

Four data pillars. One integration.
Complete LLM visibility intelligence.

The Prominence API exposes everything your teams need to measure, benchmark, and optimise brand presence in AI-generated search results across all major models, worldwide: visibility metrics, prompt-level intelligence, grounding sources, and a dedicated YouTube pillar.

Worldwide market coverage
Visibility Metrics

Measure your brand share across every LLM, your way.

Pull Share of Answer, Average Position, Share of Mentions, and Citations for any brand in your competitive set. Data available aggregated or granular, filtered by AI model, prompt segment, market, or time range. Unlimited competitor tracking included.

  • Share of Answer, Avg Position, Share of Mentions, Citations
  • Filter by model, segment, or market
  • Full competitive set, no competitor caps
  • Historical series for trend analysis
# Visibility metrics by model/api/v1/metrics?monitor_id=238&models=openai,google&include_per_model=true// > { "share_of_answer": 89.5, "share_of_mentions": 41.2, "avg_position": 1.8 }
View endpoint docs
Prompt Intelligence

Granular performance by prompt. Spot competitive gaps, find optimisation opportunities.

Access prompt-level performance data to understand exactly where your brand wins or loses visibility. Every tracked prompt comes with its visibility status, SOA and position deltas, top competitors, and the sources cited, so you can spot content and GEO opportunities.

  • Visibility status per prompt: strong, medium, weak, missing
  • Top competitors and cited sources per prompt
  • Per-model SOA breakdown
  • Filter by segment, status, or free-text search
# Missing prompts in a segment/api/v1/prompts?monitor_id=238&status=missing&include_top_competitors=true// > { "prompts": [{ "text": "best CRM for startups", "status": "missing", "top_competitors": [...] }] }
View endpoint docs
Grounding Source Prominence (GSP)

Understand how LLMs cite your brand, your competitors, and the whole category.

Access the grounding data that sits behind every AI response: which websites, publications, and domains are shaping what LLMs say about your category. Filter by domain category, track 12-week citation trends, and drill down to URL level. Critical intelligence for SEO/GEO, Digital PR, Content, and Social Media teams.

  • Source citation data per LLM and per prompt
  • Domain categories: media, UGC, commerce, social video, brand sites
  • 12-week citation trends and period deltas
  • Ideal for GEO, Digital PR, Content and Social teams
# Media publishers cited, with trends/api/v1/gsp?monitor_id=238&domain_types=media_publishers&include_trend=true// > { "domains": [{ "domain": "g2.com", "citations": 156, "weekly_trend": [10, 12, ...] }] }
View endpoint docs
YouTube Intelligence

The full YouTube grounding dataset, exposed as its own API pillar.

YouTube is one of the most influential grounding sources in AI search. Three dedicated endpoints expose the complete YouTube Explorer dataset: the videos LLMs cite, the channels carrying the most grounding weight, and aggregate metrics like YouTube share, content freshness, and grounding triggers.

  • Cited videos with metadata, citations, and triggering prompts
  • Channels ranked by grounding weight, filterable by audience size
  • YouTube weight, freshness distribution, and topic cloud
  • Built for Social, Advocacy, and creator outreach teams
# The YouTube pillar: three endpoints/api/v1/youtube/videos?monitor_id=238&include_thumbnails=true/api/v1/youtube/channels?monitor_id=238&size=medium/api/v1/youtube/metrics?monitor_id=238&include_series=true// > { "youtube_weight": { "weight_pct": 4.49 }, "channel_citations": [...] }
View endpoint docs

Supported AI engines

ChatGPTGoogle AI ModeGoogle AIOPerplexityMicrosoft CopilotGeminiGrok

What you can build

From internal dashboards to automated alerts, the Prominence API powers any workflow that needs AI visibility data.

Custom Dashboards

Integrate weekly AI visibility metrics into your existing BI tools and internal dashboards.

Web Apps & Integrations

Build client-facing applications, reporting portals, or integrate with your martech stack.

Automated Workflows

Schedule reports, set up visibility alerts, and trigger actions based on brand performance changes.

Custom Solutions

We help brands and agencies build bespoke solutions on top of Prominence data: custom dashboards, internal applications, competitive intelligence tools, and more. Our team works with yours to design and deliver exactly what you need.

Talk to Us

Data as a Service

Need raw data feeds without building the integration? We offer Data as a Service: scheduled exports, custom data pipelines, and tailored datasets for your specific brand intelligence needs.

Get in Touch
Developer Support

Frequently Asked Questions

Everything you need to know about building with our GEO & AI Search API.

General

The Prominence AI API gives developers and agencies programmatic access to brand visibility data across AI search engines and LLMs: ChatGPT, Gemini, Perplexity, and others. You can pull metrics like Share of Answer, Average Position, prompt-level performance, Grounding Source data, and YouTube grounding intelligence directly into your own applications, dashboards, or automated workflows.
The API is built for two main audiences. Developers who want to integrate AI visibility data into internal tools, BI dashboards, or client-facing applications. And agencies that want to automate reporting, build white-label solutions, or deliver competitive intelligence at scale across multiple brands.
Anything that needs AI visibility data at the core. Common use cases include custom reporting dashboards, automated weekly visibility digests, competitive benchmarking tools, client portals for agencies, and integrations with existing martech stacks.

Data

The API covers four main data pillars. The Metrics API returns Share of Answer (SOA), Average Position, Share of Mentions, and Citations, broken down by model, prompt segment, and time period. The Prompts API returns every tracked prompt with its visibility status, SOA and position deltas, top competitors, and cited sources. The Grounding Source Prominence (GSP) API returns the domains LLMs cite when generating responses about your brand, with citation frequency, domain categories, trends, and per-model breakdown. And the YouTube API exposes the videos and channels LLMs cite as grounding sources, plus aggregate metrics like YouTube weight, content freshness, and grounding triggers.
The API covers the engines that carry meaningful search traffic: OpenAI (ChatGPT), Google (Gemini, AI Overviews and AI Mode), Perplexity, Microsoft Copilot and Grok. Coverage expands as new engines gain traffic. You can query which engines have data for your specific monitor via the /api/v1/metrics/models endpoint.
Data is collected and updated on a weekly basis. Each weekly dataset is processed throughout Sunday and is generally available by Monday. The current data granularity is weekly, meaning metrics are reported at a week level, not day level. This reflects the cadence at which LLM responses are sampled across models.
No. The API does not provide real-time or live data. Responses reflect the most recently completed weekly snapshot. If your use case requires intraday or daily data, get in touch to discuss what is possible via our Data as a Service offering.

Integration

The API is a standard REST API with Bearer token authentication and JSON responses. If you can make an HTTP request, you can pull data. A basic integration (authenticating, calling /api/v1/metrics, and parsing the response) takes under an hour. More complex setups like automated pipelines or multi-monitor dashboards typically take a day or two depending on your stack.
bash curl -H "Authorization: Bearer YOUR_API_KEY" "https://api.prominenceai.io/api/v1/metrics?monitor_id=238&models=openai,google&include_series=true". That returns your brand's Share of Answer and Average Position across OpenAI and Google, with a weekly time series. See the full API documentation for all available parameters and response structures.
Not yet. Currently the API is pull-based: you query it on demand or on a schedule. Webhook support for event-driven workflows (e.g. triggering an alert when SOA drops) is on the roadmap. If this is a hard requirement for your use case, let us know: it helps us prioritize.
There are no usage caps or credit systems. API access is included in all Prominence AI plans at no additional cost, with full access to all endpoints. A rate limit of 60 requests per minute per API key applies to prevent abusive usage, but for standard reporting and dashboard workflows you are unlikely to hit it.
Bearer token authentication. You include your API key in the Authorization header of every request: Authorization: Bearer YOUR_API_KEY. You generate and manage keys in Settings -> API Keys inside your Prominence AI account. Each key carries scopes (metrics:read, gsp:read, prompts:read, youtube:read, monitors:read) that control which endpoints it can call.

Plans & Access

No. API access is included in all plans: no add-ons, no per-call pricing, no separate API tier. If you have an active Prominence AI subscription, you already have full API access.
See our plans page for current trial and access options. If you are an agency evaluating the API for a specific client use case, reach out directly: we can walk you through what the data looks like for your category before you commit.
Yes. If you need scheduled data feeds or custom pipelines without building the integration yourself, we offer Data as a Service: tailored datasets, scheduled exports, and bespoke data deliveries. Get in touch to discuss your requirements.
Yes, that is one of the core use cases the API is designed for. If you are building something more complex (a white-label reporting platform, a multi-brand intelligence tool), our team can work with you on the architecture. Talk to us about custom solutions.