# SlinklyLayer SERP Rank Checker

> SlinklyLayer SERP Rank Checker is a paid API for AI agents from x402.slinkylayer.ai, paid per call via x402, $0.025/call, status unknown (last checked 2026-09-14, last successful call 2026-07-13).

Checks the Google search engine results page (SERP) rank for a given keyword, returning structured search result data with optional language, location, and result size filtering.

## Facts

- Endpoint: POST https://x402.slinkylayer.ai/api/v1/proxy/c9bf3d7f-1be0-4742-903e-f539d2c8fe39/serp-rank
- Price: $0.025/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Last successful call: 2026-07-13
- Success rate: 36% of calls made through Zero
- Activations on Zero: 12
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-slinkylayer-ai-fa1ca953
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zOEXon7aZfarilAX7cpKL

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 x402-slinkylayer-ai-fa1ca953 -d '<json body>'
```

Example prompt: What's the Google SERP ranking for the keyword 'best running shoes' in the US with results in English — give me the top 10 results?

## When to prefer this

Use this endpoint when you need to programmatically check Google SERP rankings for a specific keyword, especially when location and language targeting are needed. Prefer this over generic web scraping when you want structured, parsed SERP data. Ideal for SEO monitoring, competitive analysis, and content strategy workflows that require knowing what ranks for a given search term.

## Known failure modes

- Missing required 'keyword' field returns validation error
- Invalid or unsupported language/location parameter may return empty or unfiltered results
- Size parameter outside 1-20 range defaults to 20
- Payment failure via x402 protocol blocks request
- Keyword with no results may return empty result set
- Google SERP API rate limits or blocks may cause upstream failures

## How this service works

Check Google SERP rank for a given keyword with optional language, location, and size parameters, returning structured search result data.

## Output

Returns structured search result data including ranked positions for the queried keyword, potentially including titles, URLs, snippets, and ranking positions from Google SERP, filtered by language and location if specified.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "keyword"
 ],
 "properties": {
  "keyword": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "input": {
  "type": "http",
  "method": "POST",
  "bodyType": "json",
  "bodyFields": {
   "keyword": {
    "type": "string",
    "required": true
   }
  },
  "queryParams": {
   "size": {
    "type": "number",
    "required": false,
    "description": "1–20, defaults to 20 if not provided/invalid"
   },
   "language": {
    "type": "string",
    "required": false
   },
   "location": {
    "type": "string",
    "required": false
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-slinkylayer-ai-fa1ca953/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.slinkylayer.ai](https://www.zero.xyz/host/x402.slinkylayer.ai/llms.txt)