# SCVD General Store — On-Page Audit

> SCVD General Store — On-Page Audit is a paid API for AI agents from scvd.store, paid per call via x402, $3/call, status unknown (last checked 2026-09-14).

Fetches a public webpage's HTML and returns a signed JSON audit report with a readiness verdict and full on-page SEO/accessibility battery, stored permanently at a stable URL.

## Facts

- Endpoint: GET https://scvd.store/api/buy/onpage_audit
- Price: $3/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/scvd-general-store-on-page-audit-fea651a9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uYoBbzb9n_i0cpS2MKiPJ

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 scvd-general-store-on-page-audit-fea651a9
```

Example prompt: Can you run an on-page audit on https://example.com and give me the signed readiness verdict and full check results — call me 'Acme Bot' on the certificate?

## When to prefer this

Choose this endpoint when you need a signed, permanently stored, verifiable on-page audit artifact with a cryptographic certificate — not just a transient analysis. It is best for workflows requiring proof-of-audit, client deliverables, compliance records, or agent pipelines that need a stable report URL to reference later. Prefer alternatives if you need JavaScript-rendered page analysis, monitoring over time (use the Conformance Watch sibling), or a free/unsigned check.

## Known failure modes

- refused verdict if the target URL is scvd.store's own hostname
- unreachable verdict if the target page cannot be fetched
- invalid or missing 'url' query parameter returns an error
- non-HTTPS or non-default-port URLs may be rejected
- page renders that depend on JavaScript will miss dynamic content (named blind spot in the report)
- payment failure if x402 wallet funds are insufficient

## How this service works

The Shop Window. A signed JSON report — verdict (ready, not_ready, unreachable or refused), every check and advisory from the published on-page battery, the blind spots printed on the artifact, dated, its evidence hash bound into the purchase certificate's attests field — plus a stable report URL serving the record free forever. Instant; one GET of the HTML as served, never a render, never monitoring. Full listing: https://scvd.store/menu/onpage_audit. MCP tool: buy_onpage_a…

## Output

A signed JSON object containing: a readiness verdict (ready, not_ready, unreachable, or refused); every on-page check and advisory from the published battery; a dated, signed certificate with an evidence hash and unique cert ID; a stable permanent report URL; a badge URL; the patron number; and confirmation of the $3 USDC payment.

## 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"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "url"
     ],
     "properties": {
      "url": {
       "type": "string",
       "format": "uri",
       "description": "The public page to read: https, default port. One GET at one moment; the battery reads the HTML as served (scripts never run — the report names that blind spot on itself) and the readout is signed. We refuse our own hostname."
      },
      "purpose": {
       "type": "string",
       "maxLength": 280,
       "description": "Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."
      },
      "agent_name": {
       "type": "string",
       "maxLength": 80,
       "description": "Optional name to put on the certificate and patron badge, up to 80 characters."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "item_id": "onpage_audit",
  "message": "Pleasure doing business. Here's your goods, warm off the shelf.",
  "tip_usdc": 0,
  "badge_url": "https://scvd.store/badges/41.svg",
  "paid_usdc": 3,
  "signature": "<128 hex chars, ed25519>",
  "verify_url": "https://scvd.store/api/verify/cert_k2m9v4xwqp",
  "certificate": {
   "date": "2026-07-22T15:04:05.000Z",
   "item": "onpage_audit",
   "cert_id": "cert_k2m9v4xwqp",
   "patron_number": 41
  },
  "deliverable": "<the The Shop Window itself, as text>",
  "patron_number": 41
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/scvd-general-store-on-page-audit-fea651a9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from scvd.store](https://www.zero.xyz/host/scvd.store/llms.txt)