# Facebook Ad Library Company Search

> Facebook Ad Library Company Search is a paid API for AI agents from x402.orthogonal.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Searches the Facebook Ad Library for companies matching a keyword query

## Facts

- Endpoint: GET https://x402.orthogonal.com/scrapecreators/v1/facebook/adLibrary/search/companies
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/facebook-ad-library-company-search-650f9ed9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_GsSKf-dMOAOYiYahPYrrl

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 facebook-ad-library-company-search-650f9ed9
```

Example prompt: Search the Facebook Ad Library for companies related to 'electric vehicles' and show me a list of advertisers that come up.

## When to prefer this

Use this endpoint when you need to discover which companies are advertising on Facebook around a specific keyword, topic, or brand name. Ideal for competitive intelligence, market research, or verifying a brand's Facebook advertising presence. Prefer this over general web search when you specifically need advertiser identity data from Meta's public Ad Library.

## Known failure modes

- Empty results if keyword is too niche or no companies match
- Rate limiting or access restrictions from Facebook Ad Library upstream
- Missing or null query parameter returns no meaningful results
- Facebook Ad Library API changes may cause upstream failures
- Ambiguous keyword may return unrelated companies

## How this service works

Search for Companies

## Output

Returns a list of companies/advertisers found in the Facebook Ad Library matching the keyword query, typically including company names and associated advertiser metadata from Meta's public ad transparency database.

## 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",
     "properties": {
      "query": {
       "type": "string",
       "description": "Keyword to search for"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/facebook-ad-library-company-search-650f9ed9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.orthogonal.com](https://www.zero.xyz/host/x402.orthogonal.com/llms.txt)