# SiteCheck Web Intel – LinkedIn Ad Library Search

> SiteCheck Web Intel – LinkedIn Ad Library Search is a paid API for AI agents from api.webintel-api.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-25).

Searches the LinkedIn Ad Library for active and historical ads by advertiser, keyword, country, and time period

## Facts

- Endpoint: GET https://api.webintel-api.workers.dev/api/seo/linkedin-ad-library?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-25
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sitecheck-web-intel-linkedin-ad-library-search-f0049bbd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dLcVVxJB6d9zQd5grmbMI

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability sitecheck-web-intel-linkedin-ad-library-search-f0049bbd
```

Example prompt: Search the LinkedIn Ad Library for ads from Microsoft running in the US over the last 30 days — I want to see what they're currently advertising.

## When to prefer this

Use this endpoint when you need to quickly query the LinkedIn Ad Library without setting up a LinkedIn API account or credentials. Ideal for competitive intelligence, ad copy research, or SEO/marketing analysis tasks where pay-per-call pricing is preferred over a subscription. Best when you need filtered results by advertiser, keyword, country, or time window.

## Known failure modes

- No ads found for the given advertiser or keyword combination — returns empty result set
- Invalid country code returns an error or empty results
- LinkedIn Ad Library data may be delayed or incomplete for very recent ads
- Rate limiting or upstream LinkedIn access issues may cause timeouts
- Invalid period value returns a validation error

## How this service works

LinkedIn Ad Library search (ads LinkedIn discloses publicly, including EU/EEA): up to 24 ads per page with ad id, advertiser, format (single image, video, carousel, document), creative type, tagline, ad text, links and detail link. Search by keyword and/or advertiser, optionally one country and a time window. From linkedin.com/ad-library via a residential proxy.

## Output

Returns a list of LinkedIn ad library entries matching the specified filters, including ad creative details, advertiser information, running periods, and targeting metadata sourced from the public LinkedIn Ad Library.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "period": {
       "type": "string",
       "description": "Optional: last-30-days, current-month, current-year, last-year"
      },
      "country": {
       "type": "string",
       "description": "Optional two-letter country code where the ad ran, e.g. US, DE"
      },
      "keyword": {
       "type": "string",
       "description": "Words in the ad, e.g. software, cybersecurity"
      },
      "advertiser": {
       "type": "string",
       "description": "Advertiser (company) name, e.g. Microsoft"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sitecheck-web-intel-linkedin-ad-library-search-f0049bbd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.webintel-api.workers.dev](https://www.zero.xyz/host/api.webintel-api.workers.dev/llms.txt)