# 402registry Quick AI Crawler Visibility Check

> 402registry Quick AI Crawler Visibility Check is a paid API for AI agents from 402registry.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-12).

Performs a fast, cheap ($0.1 USDC) check of whether AI crawlers (GPTBot, ClaudeBot, PerplexityBot, OAI-SearchBot) can actually see a given site, returning a score and top five critical findings.

## Facts

- Endpoint: GET https://402registry.com/buy/quick?utm_source=zero.xyz
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/402registry-quick-ai-crawler-visibility-check-1ced046e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_3Xx3IO67Wjr1Jyee8T2ZR

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 402registry-quick-ai-crawler-visibility-check-1ced046e
```

Example prompt: Can you do a quick AI crawler visibility check on mywebsite.com — I want to know if GPTBot and ClaudeBot can actually see it and what the top issues are?

## When to prefer this

Choose this endpoint when you need a fast, low-cost ($0.1 USDC) preliminary check of whether AI crawlers can see a site, especially when you only want the top critical issues without the full detailed report. Prefer the full check at /buy/one when you need model verdicts, fix recommendations, and catalog listing eligibility.

## Known failure modes

- Invalid or unreachable target URL returns an error
- Payment of 0.1 USDC not received causes request rejection
- Sites behind authentication or paywalls may not be fully checkable
- Rate limiting or bot-blocking on the target site may affect check accuracy
- Malformed input schema returns a validation error

## How this service works

AI crawler visibility audit: is your website visible to AI crawlers (GPTBot, ClaudeBot, PerplexityBot, OAI-SearchBot) so ChatGPT, Claude and Perplexity can read and cite it? Fetched like an AI crawler, without JavaScript: robots.txt, llms.txt, sitemap, soft 404, JSON-LD, and which crawlers are blocked at the edge. $0.10 per check, one payment per check: every rule, a model verdict, a fix with evidence for every finding. Pass: a dated badge and a registry listing. No account, no human.

## Output

Returns a numeric visibility score, categorized findings grouped by severity, and the five most critical issues (empty JS shell, soft 404, www/apex redirect mismatch, robots.txt AI bot blocking, sitemap presence) each with supporting evidence. Passing sites are queued for a free catalog check.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD"
     ],
     "type": "string"
    },
    "headers": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/402registry-quick-ai-crawler-visibility-check-1ced046e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 402registry.com](https://www.zero.xyz/host/402registry.com/llms.txt)