# Google Ad Transparency Advertiser Search

> Google Ad Transparency Advertiser Search is a paid API for AI agents from api.socialfetch.dev, paid per call via x402, $0.014/call, status unknown (last checked 2026-09-16).

Search the Google Ad Transparency library for advertisers by name or keyword, optionally filtered by country.

## Facts

- Endpoint: GET https://api.socialfetch.dev/v1/google/ad-library/advertisers/search
- Price: $0.014/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/google-ad-transparency-advertiser-search-b22e249d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7vbns1TKb_LPt5n3x3nMC

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 google-ad-transparency-advertiser-search-b22e249d
```

Example prompt: Search Google Ad Transparency for advertisers named 'Nike' in the US and show me what comes up.

## When to prefer this

Use this endpoint when you need to discover or verify advertisers in Google's Ad Transparency database by name or keyword, especially when you want to research which companies are running Google ads in a specific country. Prefer this over general web search when you need structured advertiser data directly from the Google Ad Library.

## Known failure modes

- Empty results if no advertisers match the query
- Invalid or unsupported region code returns an error or defaults to US
- Query too long (over 512 characters) is rejected
- Missing required query parameter returns a validation error
- Rate limiting or payment failure if USDC balance is insufficient

## How this service works

Search Google Ad Transparency advertisers by name.

## Output

A list of advertiser records from the Google Ad Transparency library matching the search query, including advertiser names, IDs, and related metadata. Results may be filtered by region if a two-letter country code is provided.

## 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": [
      "query"
     ],
     "properties": {
      "query": {
       "type": "string",
       "maxLength": 512,
       "minLength": 1,
       "description": "Search query text for Google Ad Transparency advertisers."
      },
      "region": {
       "type": "string",
       "description": "Two-letter country code to search in. Default: `US`."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/google-ad-transparency-advertiser-search-b22e249d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.socialfetch.dev](https://www.zero.xyz/host/api.socialfetch.dev/llms.txt)