# Page Description Audit

> Page Description Audit is a paid API for AI agents from agentreadiness.halowerk.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-14).

Fetches public evidence from a target URL and audits its page description quality, returning an observation, threshold, verdict, evidence source, limitations, and recommended action.

## Facts

- Endpoint: POST https://agentreadiness.halowerk.com/v1/page-description-audit?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/page-description-audit-b468e6b8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_aCus4B80EAG4zmN6ihuCi

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 page-description-audit-b468e6b8 -d '<json body>'
```

Example prompt: Can you audit the page description on https://example.com and tell me if it meets agent-readiness standards — I want to see the verdict, the evidence found, and what action I should take?

## When to prefer this

Use this endpoint when you need a passive, read-only audit of a specific page's description metadata for AI/agent-readiness evaluation. Prefer it over generic SEO tools when you need a structured verdict with explicit evidence sourcing and agent-focused criteria. Ideal for pre-launch checks, regression testing against a baseline, or comparing two URLs side-by-side.

## Known failure modes

- Target URL is unreachable or returns a non-200 status — audit cannot fetch evidence
- Target has no page description metadata — observation will be empty and verdict likely fails
- Malformed or non-HTTP(S) URL provided — request rejected at validation
- Target blocks crawlers or returns bot-detection pages — evidence may be incomplete
- Rate limiting or network timeouts on the target — partial or failed fetch

## How this service works

Machine-readable description audit fetches current public evidence from the supplied target and evaluates the documented criterion. It returns the observation, threshold, verdict, exact evidence source, limitations and a mode-specific action. The check is passive: no login attempt, payload injection, exploit, purchase, form submission or load test is performed.

## Output

Returns a structured audit result containing: the observed page description text, the evaluation threshold or criterion, a pass/fail verdict, the exact evidence source URL, known limitations of the passive check, and a mode-specific recommended action — all without performing any login, injection, purchase, or active test.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "target": {
   "type": "string",
   "maxLength": 2048,
   "minLength": 3,
   "description": "Public HTTP(S) URL or domain to inspect. A bare domain is normalized to HTTPS."
  },
  "context": {
   "type": "object",
   "description": "Optional non-secret correlation labels returned unchanged only in the request lifecycle.",
   "maxProperties": 12,
   "additionalProperties": {
    "type": [
     "string",
     "number",
     "boolean",
     "null"
    ]
   }
  },
  "baseline": {
   "type": [
    "object",
    "null"
   ],
   "description": "Optional baseline returned by a previous snapshot call.",
   "additionalProperties": true
  },
  "compare_url": {
   "type": "string",
   "maxLength": 2048,
   "minLength": 3,
   "description": "Optional public comparison URL. Used by change and monitoring services."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/page-description-audit-b468e6b8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentreadiness.halowerk.com](https://www.zero.xyz/host/agentreadiness.halowerk.com/llms.txt)