# Pa1m SEO Backlink Checker

> Pa1m SEO Backlink Checker is a paid API for AI agents from seo.hypa1m.xyz, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-23).

Submits an async backlink analysis job for a target website and returns a task ID to poll for results

## Facts

- Endpoint: POST https://seo.hypa1m.xyz/backlinks/check?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/pa1m-seo-backlink-checker-7b178573
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_enuwXjoOa7rvGU_hIwgYY

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 pa1m-seo-backlink-checker-7b178573 -d '<json body>'
```

Example prompt: Can you kick off a backlink check for myshop.com using Pa1m SEO and let me know the task ID so I can check the results?

## When to prefer this

Use this endpoint when you need a detailed backlink profile for a specific domain as part of an SEO audit workflow. It is part of the Pa1m SEO suite, so it pairs naturally with the full-site audit endpoints on the same platform. Prefer this over generic web scraping if you specifically need structured backlink data without writing custom crawlers.

## Known failure modes

- Invalid or unreachable target URL returns an error or empty result
- Payment failure (x402) if USDC balance is insufficient
- Task ID returned but polling endpoint returns pending indefinitely if target site times out
- Rate limiting if too many concurrent jobs are submitted
- Malformed request body returns 400 error

## How this service works

SEO audit any website — 200 rules across 20 categories: technical health, Core Web Vitals, content quality, AI-GEO signals, accessibility, security headers, structured data, and more. Async job flow: POST /scan/quick or /scan/full → poll GET /status/{job_id} → get JSON result with per-category scores (0–100) and issue lists. Use /brief for an AI action plan, /analyze for free-form SEO questions, or /check/{category} for instant single-category audits.

## Output

An async job submission response containing a task_id, a poll URL path (/backlinks/status/{task_id}) to retrieve the final result, the amount paid in USD, and a submitted timestamp. The agent must poll the status endpoint until the job completes to get the actual backlink data.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "donor_urls": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "maxItems": 1,
   "description": "Donor pages to inspect for links to your domain"
  },
  "target_domains": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "description": "Domains to look for, e.g. [\"example.com\"]"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "poll": "/backlinks/status/{task_id}",
  "task_id": "67f542b1e86b8c3b8ffac1a6",
  "paid_usd": 0.02,
  "submitted": 1
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/pa1m-seo-backlink-checker-7b178573/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from seo.hypa1m.xyz](https://www.zero.xyz/host/seo.hypa1m.xyz/llms.txt)