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402registry AI Crawler Discoverability Audit (Pack Four)
x402
402registry AI Crawler Discoverability Audit (Pack Four) is a paid API for AI agents from 402registry.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-14).
Pay-per-check audit that reports what AI crawlers (GPTBot, ClaudeBot, PerplexityBot, OAI-SearchBot) actually see on a given site, returning a verdict and optionally a dated badge and registry listing.
Price / call$0.1
Success—
StatusUnknown
How this service works
Agent-visibility check: does an AI crawler (GPTBot, ClaudeBot, PerplexityBot, OAI-SearchBot) actually see your site? BEST-RATE pack: 4 checks for $5 ($1.25/check). Same service, smallest entry $2 at https://402registry.com/buy/one. Ladder: 1/$2, 2/$3, 4/$5. All packs: https://402registry.com/.well-known/402registry.json. A passing check earns a dated badge and a registry listing. No account, no card, no human.
Output
Returns a JSON object indicating whether the audit passed (ok), the pack name (four), the audited site URL, a link to the full report, a verdict (e.g. 'listed'), and the number of checks remaining in the pack.
Example use cases
Verify AI crawler access before launch
“I'm about to launch my new SaaS site at https://myapp.io — can you check whether AI crawlers like GPTBot and ClaudeBot can actually see it, and tell me if it would get a registry listing?”
Badge eligibility check for portfolio site
“I want to know if my portfolio at https://janesmith.dev passes the AI visibility audit and qualifies for a dated discoverability badge from 402registry.”
Diagnose AI indexing gap for content site
“My blog at https://techblog.example.com isn't showing up in AI-powered search results — can you run an audit to see what PerplexityBot and OAI-SearchBot actually see on it?”
Technical details
Endpoint
GEThttps://402registry.com/buy/four?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to know specifically what AI crawlers see on a website — not what a browser renders — and want an authoritative, dated audit result with optional badge and registry listing. Prefer it over generic SEO tools when the goal is AI-era discoverability rather than traditional search engine ranking.
Side effects
- Invalid or unreachable site URL returns error verdict
- Site actively blocks AI crawlers results in 'not listed' verdict
- Insufficient payment or expired pack returns authorization error
- Malformed input schema returns 400-level error
- Site returns non-standard HTTP responses that confuse the crawler check
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"pack": "four",
"site": "https://example.com",
"report": "https://402registry.com/r/<id>",
"verdict": "listed",
"checksLeft": 3
}
}Tags
x402
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