# Article Syndicator QA Watchdog

> Article Syndicator QA Watchdog is a paid API for AI agents from articlesyndicator.net, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-31).

Probes an external domain from an independent QA node to verify web asset availability, canonical SEO signals, and site health indicators

## Facts

- Endpoint: POST https://articlesyndicator.net/api/a2a/x402/qa-watchdog?utm_source=zero.xyz
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/article-syndicator-qa-watchdog-4c92d5ea
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jh3H6SiZ6DPtRnhUBlVQM

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 article-syndicator-qa-watchdog-4c92d5ea -d '<json body>'
```

Example prompt: Can you run a QA probe on example.com from the Article Syndicator watchdog node, checking the default paths including /, /robots.txt, /sitemap.xml, and /llms.txt, and verify whether the assets are reachable?

## When to prefer this

Use this endpoint when you need an independent, third-party vantage point to verify domain and asset reachability rather than checking from your own network — particularly useful for validating SEO-critical files like robots.txt, sitemap.xml, and llms.txt as part of content syndication readiness, post-migration audits, or canonical attribution checks. Prefer it over generic uptime monitors when you need coverage of SEO-specific paths and canonical signal verification in a single call.

## Known failure modes

- Domain not resolvable — DNS lookup failure for the provided hostname
- Target domain blocks external probes or returns 403/429 for watchdog IP range
- Paths array contains malformed or invalid path strings
- Network timeout when target domain is slow or unresponsive
- Payment not processed — x402 payment required before probe is executed

## How this service works

Discover enterprise content syndication architecture: RFC 6596 cross-domain rel=canonical attribution, WebSub real-time push distribution, and RSS/Atom feed engineering.

## Output

Returns a per-path availability and health report for the specified domain, including HTTP status of each probed path (default: /, /robots.txt, /sitemap.xml, /llms.txt), asset reachability results if requested, and signals relevant to canonical SEO and crawlability — all gathered from the service's independent QA node rather than the caller's own network.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "domain"
 ],
 "properties": {
  "paths": {
   "type": "array",
   "description": "Paths to verify (default: /, /robots.txt, /sitemap.xml, /llms.txt)"
  },
  "domain": {
   "type": "string",
   "description": "External domain hostname to probe from our independent QA Watchdog node"
  },
  "verifyAssets": {
   "type": "boolean"
  },
  "affiliate_ref": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/article-syndicator-qa-watchdog-4c92d5ea/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from articlesyndicator.net](https://www.zero.xyz/host/articlesyndicator.net/llms.txt)