# Google Ads Transparency Center Advertiser Search API

Google Ads Transparency Center

Returns the Google Ads Transparency Center advertisers whose name matches a query, every match rather than the search box's first ten. Each advertiser has its AR ID (the one its ads and page use), name, country, verification and ad count as Google's range. Filter to advertisers whose ads ran in one country, with their counts there, and sort by Google's order or most ads first.

GET `/v1/google/search_advertisers`

## Example

cURL:

```shell
curl 'https://socialtap.dev/v1/google/search_advertisers?query=lululemon' \
  -H "x-api-key: $SOCIALTAP_API_KEY"
```

TypeScript SDK:

```typescript
import { SocialTap } from "socialtap";

const client = new SocialTap(); // apiKey defaults to process.env.SOCIALTAP_API_KEY

const res = await client.google.searchAdvertisers.list({ query: "lululemon" });
console.log(res.data);
console.log(res.credits.charged, res.meta.request_id);
```

Node.js (fetch):

```javascript
const params = new URLSearchParams({
  query: "lululemon",
});
const res = await fetch(`https://socialtap.dev/v1/google/search_advertisers?${params}`, {
  headers: { "x-api-key": process.env.SOCIALTAP_API_KEY ?? "" },
});
const body = await res.json();
if (!res.ok) throw new Error(`${body.error.code}: ${body.error.message}`);
const { data, page, meta } = body;
console.log(data, meta.credits_charged);
```

Python (requests):

```python
import os

import requests

res = requests.get(
    "https://socialtap.dev/v1/google/search_advertisers",
    params={"query": "lululemon"},
    headers={"x-api-key": os.environ["SOCIALTAP_API_KEY"]},
)
body = res.json()
if not res.ok:
    raise RuntimeError(f"{body['error']['code']}: {body['error']['message']}")
data, page, meta = body["data"], body["page"], body["meta"]
print(data, meta["credits_charged"])
```

Go (net/http):

```go
package main

import (
	"encoding/json"
	"fmt"
	"log"
	"net/http"
	"net/url"
	"os"
)

func main() {
	q := url.Values{}
	q.Set("query", "lululemon")
	req, err := http.NewRequest("GET", "https://socialtap.dev/v1/google/search_advertisers?"+q.Encode(), nil)
	if err != nil {
		log.Fatal(err)
	}
	req.Header.Set("x-api-key", os.Getenv("SOCIALTAP_API_KEY"))
	res, err := http.DefaultClient.Do(req)
	if err != nil {
		log.Fatal(err)
	}
	defer res.Body.Close()
	var body struct {
		Data  json.RawMessage `json:"data"`
		Page  json.RawMessage `json:"page"`
		Meta  map[string]any  `json:"meta"`
		Error *struct {
			Code    string `json:"code"`
			Message string `json:"message"`
		} `json:"error"`
	}
	if err := json.NewDecoder(res.Body).Decode(&body); err != nil {
		log.Fatal(err)
	}
	if body.Error != nil {
		log.Fatalf("%s: %s", body.Error.Code, body.Error.Message)
	}
	fmt.Println(string(body.Data), body.Meta["credits_charged"])
}
```

200 OK:

```json
{
  "data": [
    {
      "approximate_fields": [],
      "avatar_url": null,
      "banner_url": null,
      "bio": null,
      "category": null,
      "country_code": "MX",
      "created_at": null,
      "display_name": "LULULEMON MEXICO",
      "external_links": [],
      "id": "AR02903092099014459393",
      "is_private": null,
      "is_verified": true,
      "location": null,
      "metrics": {
        "follower_count": null,
        "following_count": null,
        "post_count": 16,
        "total_like_count": null,
        "total_view_count": null
      },
      "platform": "google",
      "platform_specific": {
        "google": {
          "ads": {
            "lower_bound": 16,
            "upper_bound": 16
          },
          "election": null,
          "is_election_advertiser": null,
          "last_shown_at": null,
          "legal_name": null
        }
      },
      "type": "unknown",
      "unknown_fields": [
        "external_links"
      ],
      "url": "https://adstransparency.google.com/advertiser/AR02903092099014459393",
      "username": null
    },
    {
      "approximate_fields": [
        "metrics.post_count"
      ],
      "avatar_url": null,
      "banner_url": null,
      "bio": null,
      "category": null,
      "country_code": "HK",
      "created_at": null,
      "display_name": "lululemon HK Limited",
      "external_links": [],
      "id": "AR01382517811867287553",
      "is_private": null,
      "is_verified": true,
      "location": null,
      "metrics": {
        "follower_count": null,
        "following_count": null,
        "post_count": 4000,
        "total_like_count": null,
        "total_view_count": null
      },
      "platform": "google",
      "platform_specific": {
        "google": {
          "ads": {
            "lower_bound": 4000,
            "upper_bound": 5000
          },
          "election": null,
          "is_election_advertiser": null,
          "last_shown_at": null,
          "legal_name": null
        }
      },
      "type": "unknown",
      "unknown_fields": [
        "external_links"
      ],
      "url": "https://adstransparency.google.com/advertiser/AR01382517811867287553",
      "username": null
    },
    {
      "approximate_fields": [],
      "avatar_url": null,
      "banner_url": null,
      "bio": null,
      "category": null,
      "country_code": "QA",
      "created_at": null,
      "display_name": "LULULEMON ATHLETICA TRADING",
      "external_links": [],
      "id": "AR06362141867382931457",
      "is_private": null,
      "is_verified": true,
      "location": null,
      "metrics": {
        "follower_count": null,
        "following_count": null,
        "post_count": 55,
        "total_like_count": null,
        "total_view_count": null
      },
      "platform": "google",
      "platform_specific": {
        "google": {
          "ads": {
            "lower_bound": 55,
            "upper_bound": 55
          },
          "election": null,
          "is_election_advertiser": null,
          "last_shown_at": null,
          "legal_name": null
        }
      },
      "type": "unknown",
      "unknown_fields": [
        "external_links"
      ],
      "url": "https://adstransparency.google.com/advertiser/AR06362141867382931457",
      "username": null
    }
  ],
  "page": {
    "has_more": false,
    "next_cursor": null,
    "next_cursor_expires_at": null,
    "end_reason": "end"
  },
  "meta": {
    "request_id": "req_3f9c2a7d1e8b4c6a9f0e2d4b6a8c0e1f",
    "platform": "google",
    "source": "api",
    "is_cached": false,
    "credits_charged": 1,
    "latency_ms": 234,
    "fetched_at": "2026-10-25T12:00:00Z",
    "input": null,
    "credits_remaining": 9999,
    "client_request_id": null,
    "warnings": []
  }
}
```

Long arrays and strings are shortened for display; real responses are complete.

> [!NOTE]
>
> **Good to know**
>
> - A brand usually has several advertisers, one per legal entity and country (Nike, Inc. in the US, Nike Retail BV in the Netherlands): sort=popular puts the largest first, where Google's own order often doesn't.
> - sort=popular ranks the matches a walk reaches, Google's most relevant first. For a very broad query (a single letter) that is not every match, so a larger advertiser further down Google's order is not ranked. A brand's name ranks all of its advertisers.
> - Ad counts are Google's ranges (thousands are bucketed): metrics.post_count is the lower bound, listed in approximate_fields, and platform_specific.google.ads has both bounds. With country, they count only the ads shown there.
> - Only advertisers are returned. The Google Ads Transparency Center Search Suggestions API also returns the websites the center's search box suggests, and the Google Ads Transparency Center Ads by Website API finds a website's ads by its domain.
> - A query matches names, not IDs: an advertiser's ID finds nothing, and a link is searched as words, which match no name. Send an ad's or an advertiser's link to the endpoint that takes it. Another Ads Transparency Center page (a domain search) is refused.

## Authorizations

`x-api-key`stringheaderrequired

Your API key. [Authentication](https://socialtap.dev/docs/authentication/index.md)

## Query parameters

| Name | Type | Description | Example |
| --- | --- | --- | --- |
| `query` required | `string`<br>max 200 chars | An advertiser's name, or a part of it, as typed into the Ads Transparency Center's search box, in any language (nike, lululemon athletica, トヨタ). Case and punctuation do not matter. | `lululemon` |
| `country` optional | `string`<br>iso3166-1-alpha-2 | Region: an ISO 3166-1 alpha-2 country code such as US or BR (case-insensitive). Only advertisers whose ads were shown in this country, with their ad counts there. Every country when omitted. | `US` |
| `sort` optional | `string` | Order of the results. relevance (default): Google's order, as the center's search box lists them. popular: most ads first, by Google's ad counts.<br>One of `relevance`, `popular` | — |
| `limit` optional | `integer`<br>min 1<br>max 100 | Items per page, 1 to the endpoint's page size (its default and maximum; larger values are reduced to it). Omit it: every page costs the same, so a smaller limit means more pages to pay for. | `100` |
| `cursor` optional | `string` | page.next_cursor from the previous response. Send the same other parameters; omit to start from the first page. | — |

Unknown parameters are rejected with a suggestion, never ignored ([Requests](https://socialtap.dev/docs/requests/index.md)). `limit` and `cursor` page through the list: see Pagination.

**Parameters every endpoint accepts**

| Name | Type | Description | Example |
| --- | --- | --- | --- |
| `max_age` optional | `integer`<br>min 0 | Accept a cached response up to this many seconds old. Cache hits cost 0 credits. Omit to always fetch fresh. The Cache-Control: max-age=N request header is equivalent; max_age wins when both are sent. | — |
| `fields` optional | `string` | Return only these fields of each item: comma-separated paths in the schema's notation (id,text,metrics.view_count,segments\[\].text; a parent path keeps the whole object). Unknown paths are rejected. Applied after the cache, so it changes neither the price nor cache hits; page and meta are always returned whole. | — |

## Response

### 200

`{data, page, meta}`. `data` is an array of up to 100 [profile](https://socialtap.dev/resources/profile/index.md) objects, Google's order, as the center's search box lists the matches; `page` says how to get the next page; `meta` describes the request ([meta](https://socialtap.dev/docs/reference/index.md#meta)). Fields only Google Ads Transparency Center has are under `platform_specific.google`.

| Field | Type | Description |
| --- | --- | --- |
| `data[].platform` | `string` | Platform ID (tiktok, youtube, …). |
| `data[].id` | `string` | Platform-native account ID (string; YouTube UC…, Reddit t2_…). |
| `data[].username` | `string` or `null` | Handle without the @; null when the account has none. |
| `data[].display_name` | `string` or `null` | Display name, channel title or page name; null when empty or not exposed. |
| `data[].url` | `string` (uri) | Canonical profile URL. |
| `data[].type` | `string` | Coarse account kind, as the platform labels it; unknown when it does not (TikTok labels organizations only). New values may be added; treat unknown values as unknown.<br>One of `person`, `organization`, `community`, `unknown` |
| `data[].bio` | `string` or `null` | Profile bio, channel description or page about text; null when empty or not exposed. |
| `data[].avatar_url` | `string` (uri) or `null` | Profile picture URL (largest available). Platform CDN URLs can expire within hours. |
| `data[].banner_url` | `string` (uri) or `null` | Header or cover image URL. |
| `data[].is_verified` | `boolean` or `null` | Platform verification badge; null where the platform has no badge. |
| `data[].is_private` | `boolean` or `null` | True when the account's posts are not public. |
| `data[].category` | `string` or `null` | Platform category label (e.g. Musician, Media & Entertainment), as shown; not normalized. Often set only for business or creator accounts. |
| `data[].external_links` | `object[]` | Links in the bio or channel links; \[\] if none or not exposed. |
| `data[].external_links[].url` | `string` (uri) | Link target, absolute (https:// is added where the platform stores the link without a scheme). |
| `data[].external_links[].title` | `string` or `null` | Link label shown by the platform. |
| `data[].location` | `string` or `null` | Self-declared location text. |
| `data[].country_code` | `string` or `null` | ISO 3166-1 alpha-2 country the platform states for the account. |
| `data[].created_at` | `string` (date-time) or `null` | Account creation or join date, RFC 3339 UTC (some platforms give only the day: see approximate_fields). |
| `data[].metrics` | `object` | Counts at fetch time; null = hidden or not exposed, 0 = zero. |
| `data[].metrics.follower_count` | `integer` or `null` | Followers or subscribers. |
| `data[].metrics.following_count` | `integer` or `null` | Accounts this profile follows. |
| `data[].metrics.post_count` | `integer` or `null` | Google Ads Transparency Center: ads. Posts or videos as the platform counts them on the profile (for a private account, posts the caller cannot see). |
| `data[].metrics.total_like_count` | `integer` or `null` | Likes received across all of the profile's posts (not likes given). |
| `data[].metrics.total_view_count` | `integer` or `null` | Lifetime views across all of the profile's posts. |
| `data[].platform_specific` | `object` | Fields only this platform has, under its ID (platform_specific.\<platform>); each null when unknown. |
| `data[].platform_specific.google` | `object` or `null` | A Google advertiser's own fields. |
| `data[].platform_specific.google.ads` | `object` or `null` | The ads the center shows for the advertiser, as Google's range (equal bounds when exact), in the region the request names where it takes one; metrics.post_count is its lower bound. Null when not shown. |
| `data[].platform_specific.google.ads.lower_bound` | `integer` | Inclusive lower bound. |
| `data[].platform_specific.google.ads.upper_bound` | `integer` or `null` | Inclusive upper bound; null when open-ended (e.g. ">1M"). Equal to lower_bound when exact. |
| `data[].platform_specific.google.legal_name` | `string` or `null` | The advertiser's legal name, as Google verified it; null when the center shows none. |
| `data[].platform_specific.google.last_shown_at` | `string` (date-time) or `null` | The last time one of the advertiser's ads was shown, RFC 3339 UTC (among the ads counted in ads); null when it has none or the center does not show it. |
| `data[].platform_specific.google.is_election_advertiser` | `boolean` or `null` | True when Google verified the advertiser to run election ads (it has a page in the center's political ads view). |
| `data[].platform_specific.google.election` | `object` or `null` | The advertiser's election-ads disclosure; null when it is not an election advertiser or the center does not show it. |
| `data[].platform_specific.google.election.ad_count` | `integer` or `null` | Election ads the center shows for the advertiser, exact. |
| `data[].platform_specific.google.election.country_codes` | `string[]` | ISO 3166-1 alpha-2 codes of the countries and territories it is verified to run election ads in; \[\] when not shown. |
| `data[].platform_specific.google.election.regulatory_ids` | `object[]` | The advertiser's registrations with election regulators (a US FEC committee ID, or an individual's own registration); \[\] when it disclosed none. |
| `data[].platform_specific.google.election.regulatory_ids[].type` | `string` | The kind of identifier. New values may be added; treat unknown values as other.<br>One of `us_fec_id`, `us_employer_identification_number`, `us_state_id`, `us_individual`, `other` |
| `data[].platform_specific.google.election.regulatory_ids[].id` | `string` | The identifier, as registered (C00003418). |
| `data[].approximate_fields` | `string[]` | JSON paths of values rounded by the platform or parsed from display text (e.g. metrics.follower_count). A list path (external_links) means the list may be incomplete. \[\] when all exact. |
| `data[].unknown_fields` | `string[]` | JSON paths of lists whose \[\] means unknown rather than none (a source that cannot see them); null already means unknown for every other field. \[\] when every list is known. |

not_found and private_or_unavailable are item-level: the request was fine, the item can't be returned.

### 400

400 Bad Request: 2 error codes. Free: errors cost nothing.

| Code | HTTP | Retry | Meaning | What to do |
| --- | --- | --- | --- | --- |
| `invalid_input` | 400 | No | A parameter is missing or malformed, or the link is not one this endpoint takes. | Fix the parameter named in param as the message says. For a link of the wrong kind, call an endpoint listed in details.endpoints, when there is one. |
| `invalid_cursor` | 400 | No | The cursor is malformed or expired, belongs to another endpoint, or came with other parameters than the request that returned it. | Repeat the original request without cursor to start the list again. |

### 401

401 Unauthorized: 1 error code. Free: errors cost nothing.

| Code | HTTP | Retry | Meaning | What to do |
| --- | --- | --- | --- | --- |
| `unauthorized` | 401 | No | The x-api-key header is missing, or its key is unknown or revoked. On the dashboard's routes: the session cookie is missing or expired. | Send a valid API key in the x-api-key header. No key yet? A person gets one at details.signup_url; an AI agent follows details.agent_auth_url. |

### 402

402 Payment Required: 2 error codes. Free: errors cost nothing.

| Code | HTTP | Retry | Meaning | What to do |
| --- | --- | --- | --- | --- |
| `insufficient_credits` | 402 | No | The account does not have enough credits for this request. | Have a person buy credits at details.purchase_url (or make them a checkout link with details.checkout), then repeat the request. Do not retry automatically. |
| `spend_limit_reached` | 402 | No | The API key reached its spend limit for this period. The account may still have credits. | Wait until details.resets_at, or raise the key's spend limit (PATCH /v1/api_keys/{id}). Do not retry automatically. |

### 403

403 Forbidden: 2 error codes. Free: errors cost nothing.

| Code | HTTP | Retry | Meaning | What to do |
| --- | --- | --- | --- | --- |
| `forbidden` | 403 | No | The API key is valid but may not make this request, and details.reason says why: the account is suspended, the key lacks the route's scope, waits for its owner to confirm it by email, has expired, or was used from an IP outside its allowlist, or a rotated key's previous secret was used for a call that needs the admin scope. A running job stops with it too when its account is suspended or the key that created it is revoked or expires. It is about the key, never the item: a private item is private_or_unavailable, also 403, so branch on the code. | Act on details.reason. suspended: contact [support](mailto:support@socialtap.dev). scope: use a key with details.required_scope. previous_secret: use the new secret. key_pending: have the owner open the emailed link. key_expired or key_revoked: create a new key. ip_not_allowed: call from an allowed IP. |
| `private_or_unavailable` | 403 | No | The item exists but is not public: it is private, age- or region-restricted, or needs a login to view. It shares 403 with forbidden (which is about the key), so branch on the code. | Only public items can be fetched. Do not retry. |

### 404

404 Not Found: 1 error code. Free: errors cost nothing.

| Code | HTTP | Retry | Meaning | What to do |
| --- | --- | --- | --- | --- |
| `not_found` | 404 | No | The item does not exist or was deleted. On GET /v1/requests/{id}/response: the response was not kept (details.reason says why). | Check the link or ID. Do not retry. |

### 429

429 Too Many Requests: 1 error code. Free: errors cost nothing.

| Code | HTTP | Retry | Meaning | What to do |
| --- | --- | --- | --- | --- |
| `rate_limited` | 429 | Yes, later | The account passed its runaway-protection ceiling: a high per-account limit that stops a broken client loop (plans have no rate limit). Requests without an API key (signup, the MCP server's tool listing and find_endpoint) are limited per IP address instead. It also stops an account whose failed requests in the last hour cost far more than its successful ones paid for: failures are free within a limit (the message says so), and successes raise it. | Wait the seconds in the retry-after header, then retry. If your steady traffic needs more, ask [support](mailto:support@socialtap.dev) to raise the ceiling; without an API key, send one. |

### 500

500 Internal Error: 1 error code. Free: errors cost nothing.

| Code | HTTP | Retry | Meaning | What to do |
| --- | --- | --- | --- | --- |
| `internal` | 500 | Yes, later | An unexpected error on SocialTap's side. | Retry with backoff. If it keeps happening, contact [support](mailto:support@socialtap.dev) with the request_id. |

### 502

502 Bad Gateway: 1 error code. Free: errors cost nothing.

| Code | HTTP | Retry | Meaning | What to do |
| --- | --- | --- | --- | --- |
| `upstream_error` | 502 | Yes, later | The platform failed, or answered with something we could not read. | Retry with backoff. Failed requests are free. |

### 503

503 Unavailable: 2 error codes. Free: errors cost nothing.

| Code | HTTP | Retry | Meaning | What to do |
| --- | --- | --- | --- | --- |
| `upstream_blocked` | 503 | Yes, later | The platform refused every attempt, our own retries included. | Retry later with backoff. Failed requests are free. |
| `overloaded` | 503 | Yes, later | SocialTap was at capacity, or paused by its operators, and did not start the request. Nothing was fetched or charged. | Retry after the seconds in the retry-after header. Failed requests are free. |

## Pagination

Items come in pages, **Google's order, as the center's search box lists the matches**. To get the next page, send **the same request plus `cursor`** set to `page.next_cursor` from the previous response. Keep every other parameter the same (limit, max_age and fields may change); anything else that differs is rejected. When `page.has_more` is `false` the walk is over, and `page.end_reason` says why: only `end` means you have every item (the others say the platform or a page cap stopped the walk early).

- **Order**: `sort=relevance` (the default): Google's order, as the center's search box lists the matches; `sort=popular`: most ads first, by the center's ad counts (the upper bound, then the lower), Google's order among equals
- **Page size**: Up to 100 advertisers (the default; `limit` lowers it)
- **Cursor lifetime**: 24 hours; don't store cursors
- **Price**: Per page, 1 credit

### The `page` object

| Field | Type | Description |
| --- | --- | --- |
| `page.has_more` | `boolean` | True when another page exists; then next_cursor is set. An empty page with has_more true is not the end. |
| `page.next_cursor` | `string` or `null` | Pass as cursor, with the same other parameters, to get the next page; null at the end. |
| `page.next_cursor_expires_at` | `string` (date-time) or `null` | When next_cursor stops working, RFC 3339 UTC; null at the end. Don't store cursors. |
| `page.end_reason` | `string` or `null` | Why there are no more pages; null while has_more is true. end: the list ended, or reached since/until. platform_limit: the platform stops serving further pages although the list goes on. max_pages: SocialTap's cap on pages in one walk. New values may be added. A short or empty page is not the end: only has_more false is.<br>One of `end`, `platform_limit`, `max_pages` |

### Next page

cURL: next page:

```shell
curl 'https://socialtap.dev/v1/google/search_advertisers?query=lululemon&cursor=NEXT_CURSOR' \
  -H "x-api-key: $SOCIALTAP_API_KEY"
```

- The price is per page: each successful page costs the same, whatever `limit` is and however many items it has. Empty pages are charged too (an empty page with `has_more: true` is not the end).
- A `limit` below 100 doesn't save credits: the next request serves the rest of the same platform page, which is fetched again and charged as a page each time, and items can shift between those requests if the platform changes the list. Omitting `limit` is the cheapest way to walk the list.
- Errors are free, including a rejected cursor.
- Pages served from the cache are free.
- An expired or altered cursor, or one sent with different parameters, fails with [`invalid_cursor`](https://socialtap.dev/docs/errors/index.md#invalid_cursor) (HTTP 400): Repeat the original request without cursor to start the list again.

[Pagination guide](https://socialtap.dev/docs/pagination/index.md)

## Pricing

From **1 credit** per page. Charged per successful page, whatever its number of items. Errors are free. The price depends on the source that produced the result, reported as `meta.source`.

| Source | Price per successful page | Per 1,000 pages |
| --- | --- | --- |
| Platform API `api` | 1 credit | $0.75–$1.97 |

**Balance, sources and what you were charged**

Your balance must be at least **1 credit** to start a request; with less, it is refused with [`insufficient_credits`](https://socialtap.dev/docs/errors/index.md#insufficient_credits) (HTTP 402) and costs nothing. Only that minimum is set aside when the request starts.

| meta.source | Source | What it means |
| --- | --- | --- |
| `api` | Platform API | The platform's public, logged-out API. |

`meta.credits_charged` and the `x-credits-charged` header show what you paid. [How credits work](https://socialtap.dev/docs/credits/index.md) · [Packs](https://socialtap.dev/pricing/index.md)

Endpoint ID `google.search_advertisers` · operationId `google.search_advertisers.list` · [Product overview](https://socialtap.dev/apis/google/search_advertisers/index.md)

---

[HTML version](https://socialtap.dev/docs/reference/google/search_advertisers/) · [Docs index for AI agents](https://socialtap.dev/llms.txt) · [All docs in one file](https://socialtap.dev/llms-full.txt)
