The same call, from your code.
The tool makes one call to google.ads.search. Run the same request from your code, or give it to your agent. The response is JSON with each ad, its advertiser, its format and its dates.
terminal
Free tool
Free GoogleAd Library Search
Type a domain. The tool returns the ads it runs on Google and YouTube, from Google's Ads Transparency Center, with format and dates.
Free. No account. No API key.
How it works.
Type a domain
Type the domain of the advertiser, without https and without a path.
Get the ads
The tool calls google.ads.search. The API returns the ads that Google lists for that domain.
Open or download
Select an advertiser name to open the ad in the Ads Transparency Center. Download CSV saves one row per ad.
What people use it for.
Study a competitor's ads
See which formats a competitor runs and how long each ad has been shown. An advertiser keeps paying for the ads that run for months.
Date a campaign
Use the first and last days an ad was shown to see when a brand starts and stops a campaign.
Check your own domain
Search your own domain to see which advertisers run ads that point to it.
When you need more.
- Use the APISend a POST request with a Bearer key. Every endpoint returns success, data, creditsUsed and requestId.
- Use MCPAdd https://api.stophy.dev/mcp to Claude, Cursor or Codex. The agent finds an endpoint and calls it.
- Use the SDKInstall the TypeScript or Python client. Call an endpoint by its id, such as youtube.transcript.
- Use the CLICall an endpoint from the terminal. The CLI prints JSON, so you can pipe the result into a script.
Questions and answers.
Yes. The tool calls an endpoint that needs no API key and no card. A free daily limit applies across all tools.
Ads in Google's Ads Transparency Center. These are ads shown on Google Search, YouTube, Google Maps, Google Play and Google Shopping. The tool does not cover ads on Meta, TikTok or LinkedIn.
No. Google's library finds ads by advertiser, not by keyword. Type the advertiser's domain, such as nike.com.
The first page, up to 25 ads. Each ad has its advertiser, its format (text, image or video), the first and last day it was shown, and a link that opens the ad in the Ads Transparency Center. The tool does not return the text of an ad.
Yes. Send POST /v1/google/ads/search with a domain in query. The response has success, data, creditsUsed and requestId, and data holds a results list with adUrl, advertiserName, format, firstShownAt, lastShownAt and daysShown for each ad. The endpoint also takes country, mediaType, platform, shownFrom and shownTo. With an API key, send the cursor to get the next page, and call google.ads.ad for the regions and impressions of one ad.
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