402registry AI Crawler Discoverability Audit (two-check pack)

x402

402registry AI Crawler Discoverability Audit (two-check pack) is a paid API for AI agents from 402registry.com, paid per call via x402, $3/call, status unknown (last checked 2026-10-14).

Runs a pay-per-check audit of a website to reveal exactly what AI crawlers (GPTBot, ClaudeBot, PerplexityBot, OAI-SearchBot) see, returning a score, verdict, and optional public catalog listing — purchased as a two-check pack via x402 micropayment.

Price / call$3

Seller volume →—

Success—

StatusUnknown

How this service works

Pay-per-check discoverability audit: $2 to see what an AI crawler actually sees on your site — GPTBot, ClaudeBot, PerplexityBot, OAI-SearchBot, not a browser render. A passing check earns a dated badge and a registry listing. No account, no card, no human.

Output

A JSON receipt with a boolean ok, a verdict enum (listed/refused/doubt), a 0-100 discoverability score, the number of findings, a URI to the full HTML or JSON report, catalog listing outcome, payment transaction hash, credits used, and optionally a monitoring schedule object showing next re-check timing. If the same payment is replayed, the response includes replay:true with the original settlement time and no additional charge.

Example use cases

Pre-launch AI visibility check

“Before we go live, can you audit https://newstartup.io to see what GPTBot and ClaudeBot actually see — I want to know the score and whether it would get listed in the AI crawler registry, but keep the result private for now.”

Ongoing monitoring for content site

“Set up a monthly discoverability check for https://myblog.com — I want to know if AI crawlers like PerplexityBot can see my content, list it in the public catalog if it passes, and ping https://myblog.com/webhooks/ai-status whenever the score drops or the listing changes.”

Debugging AI search invisibility

“My site https://techforum.net stopped appearing in AI-powered search results — can you run the AI crawler audit to see what GPTBot actually sees and get a detailed report of the findings?”

Technical details

Endpoint

GEThttps://402registry.com/buy/two?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need to know specifically what AI crawlers (GPTBot, ClaudeBot, PerplexityBot, OAI-SearchBot) see on a site — not a browser render or standard SEO audit. It is the right choice when you want a dated badge and public catalog listing as proof of AI accessibility, when you need ongoing monitoring with webhook notifications for score changes, or when you require a no-account, no-login micropayment flow via x402. Prefer it over general SEO tools when the question is AI-crawler visibility specifically, not Google PageRank or human UX.

Side effects

Invalid or non-HTTPS site URL causes refusal before payment is taken
Unknown enum value for catalog or monitor parameter causes pre-payment refusal
Payment not received or insufficient USDC causes 402 Payment Required response
Site could not be fetched by any crawler, returning score:null and verdict:doubt with 0 credits spent
Notify webhook URL fails delivery three consecutive times and is automatically disarmed
x402 protocol version mismatch if unsupported version string is sent

Input

Schema · Request body

Field	Type	Description
site	string	The https URL to check. Required to actually pay; omitted, the response is just the price list.
notify	string	An https:// URL we POST to when a scheduled re-check finds a change: the site lost or regained its listing, or its score dropped materially. Needs monitor= as well, since it only fires on scheduled re-checks. The payload carries a verify URL — the free public lookup — so you confirm against the record instead of trusting the webhook. Delivery is best effort: the record is authoritative, and after three consecutive failed deliveries the URL is disarmed. Nothing is sent when our own model was unavailable, because that is not a change in your site.
catalog	string	A passing site is listed in the free public catalog by default. Send no to keep the result private — you get the same full analysis either way, and nothing about a failed check is ever published. An unknown value is refused before any payment is taken.
monitor	string	Opt in to scheduled re-checks at this cadence. Omit it for a one-off check — nothing is ever re-checked unless you ask. Each scheduled check spends one credit, and monitoring stops when the balance reaches zero. It only starts when the verdict is `listed`; an unknown value is refused before any payment is taken.
x402Version	string	Force the older x402 protocol version with 1. The default is 2, with the requirements in the PAYMENT-REQUIRED header.

Output

Schema · Response

Field	Type	Description
okrequired	boolean
note	string
packrequired	string
score	—	0-100; null when the site could not be scored.
checks	integer	Replay form only: checks in the pack.
listed	boolean	Whether this purchase put the site in the public catalog.
replay	boolean	True when this exact payment was already settled: nothing was charged again.
reportrequired	string	The full report, HTML or ?format=json.
catalog	object	Catalog outcome: listed, or the reason it was not.
message	string
paymentrequired	—	Settlement transaction hash on the payment network.
verdict	string
findings	integer	Number of findings in the report.
settledAt	integer	Replay form only: settlement time, Unix milliseconds.
checksUsed	integer	Credits this check spent: 1, or 0 when the verdict is doubt.
monitoring	object	Scheduled re-check status: the cadence and next check, or why it did not start.
checksBought	integer	Checks in the pack you bought.

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