# AGMM Web Visibility Grader

> AGMM Web Visibility Grader is a paid API for AI agents from agmm.co.uk, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-29).

Analyzes a website domain and returns an A–F readability grade for AI crawlers and answer engines, checking robots.txt, llms.txt, sitemaps, JSON-LD, headers, and AI-readiness signals.

## Facts

- Endpoint: GET https://agmm.co.uk/x402/web/visibility?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agmm-web-visibility-grader-1f650b0e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hNZvL1WwUen5vjwpebuso

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 agmm-web-visibility-grader-1f650b0e
```

Example prompt: What's the AI crawler visibility grade for openai.com — check robots.txt, llms.txt, sitemap, and all the usual AI readiness signals and give me the full breakdown.

## When to prefer this

Choose this endpoint when you need a deterministic, LLM-free audit of how accessible a specific website is to AI crawlers and answer engines. It is purpose-built for checking robots.txt rules for named AI bots (GPTBot, ClaudeBot, etc.), llms.txt presence, Cloudflare managed-robot blocks, and AI-readiness signals — making it more specialized than generic SEO auditors or robots.txt parsers. Prefer it over manual inspection when you need a structured, machine-readable grade with actionable findings across a comprehensive checklist.

## Known failure modes

- Invalid or unreachable domain returns an error response
- Domains behind WAFs or private networks may return incomplete results
- Preview mode (preview=1) returns only grade and count, not full findings
- Cached results may be returned for recently-checked domains (cached flag set true)
- Rate limiting or payment failure returns 402 or payment-related error

## How this service works

Domain in, a grade from A to F out: how readable a website is to AI crawlers and answer engines (robots.txt, llms.txt, sitemap, JSON-LD, MCP and x402 readiness). Public files only, no LLM. $0.05 USDC per request.

## Output

Returns a structured JSON object with schema 'agmm.visibility.v1' containing: an A–F letter grade, numeric score, per-crawler access status (allowed/partial/blocked) for up to 10 named AI crawlers, a summary of pass/warn/fail/info counts, and a detailed findings array. Also includes presence checks for robots.txt, llms.txt, sitemap, JSON-LD types, canonical tags, noindex signals, X-Robots-Tag headers, response time, and OpenAPI/MCP/x402 readiness. Preview mode returns only the grade and finding count.

## 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",
      "DELETE"
     ],
     "type": "string"
    },
    "headers": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    },
    "queryParams": {
     "type": "object",
     "required": [
      "domain"
     ],
     "properties": {
      "domain": {
       "type": "string",
       "description": "The website to check, for example agmm.co.uk"
      },
      "preview": {
       "enum": [
        "1"
       ],
       "type": "string",
       "description": "Send 1 for the free preview (grade and finding count)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "format": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "schema",
      "domain",
      "grade",
      "score",
      "summary",
      "crawlers",
      "findings",
      "about"
     ],
     "properties": {
      "about": {
       "type": "object",
       "required": [
        "publisher",
        "description",
        "url"
       ],
       "properties": {
        "url": {
         "type": "string"
        },
        "service": {
         "type": "object"
        },
        "built_by": {
         "type": "string"
        },
        "publisher": {
         "type": "string"
        },
        "description": {
         "type": "string"
        }
       }
      },
      "facts": {
       "type": "object"
      },
      "grade": {
       "enum": [
        "A",
        "B",
        "C",
        "D",
        "F"
       ]
      },
      "score": {
       "type": "integer"
      },
      "cached": {
       "type": "boolean"
      },
      "domain": {
       "type": "string"
      },
      "method": {
       "type": "object"
      },
      "schema": {
       "const": "agmm.visibility.v1"
      },
      "summary": {
       "type": "object",
       "required": [
        "pass",
        "warn",
        "fail",
        "issues"
       ],
       "properties": {
        "fail": {
         "type": "integer"
        },
        "info": {
      
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agmm-web-visibility-grader-1f650b0e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agmm.co.uk](https://www.zero.xyz/host/agmm.co.uk/llms.txt)