# SiteCheck Website Audit API

> SiteCheck Website Audit API is a paid API for AI agents from api.sitecheck-api.workers.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-01).

Audits a website URL and returns SEO, security, accessibility, and technology stack information

## Facts

- Endpoint: GET https://api.sitecheck-api.workers.dev/api/audit?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sitecheck-website-audit-api-8c802f62
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uYhXnOfEc3xmTf-Uj4xMW

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 sitecheck-website-audit-api-8c802f62
```

Example prompt: Can you audit shopify.com and tell me its SEO title, whether HSTS is enabled, any accessibility issues with their WCAG scores, and what tech stack they're running?

## When to prefer this

Choose this endpoint when you need a quick, single-call website audit covering SEO, security, accessibility, and tech stack in one response without requiring an API key or signup. It is ideal for pay-per-use agent workflows using x402/USDC on Base where you want to avoid subscription overhead. Prefer it over dedicated SEO tools when a broad multi-category snapshot is needed rather than deep crawling.

## Known failure modes

- Invalid or unreachable URL returns an error or empty result
- Timeout if the target website is slow to respond
- Paywalled or bot-blocked websites may return incomplete data
- Malformed domain input (missing TLD) may fail schema validation
- x402 payment failure if USDC balance is insufficient

## How this service works

Website audit in one call: WCAG 2.2 accessibility issues (European Accessibility Act) with fixes and a score, SEO basics, security headers and tech stack.

## Output

Returns a JSON object containing: the final resolved URL, SEO metadata (e.g. page title), detected technology stack (e.g. Shopify, WordPress), security posture (e.g. HSTS enabled/disabled), and an accessibility report with a numeric score and a list of issues including WCAG rule codes, severity, count, and suggested fixes.

## 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",
       "description": "Website URL or domain, e.g. example.com"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "seo": {
   "title": "Example"
  },
  "url": "https://example.com/",
  "tech": [
   "Shopify"
  ],
  "security": {
   "hsts": true
  },
  "accessibility": {
   "score": 85,
   "issues": [
    {
     "fix": "Add alt text",
     "rule": "image-alt",
     "wcag": "1.1.1",
     "count": 3,
     "severity": "critical"
    }
   ]
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sitecheck-website-audit-api-8c802f62/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.sitecheck-api.workers.dev](https://www.zero.xyz/host/api.sitecheck-api.workers.dev/llms.txt)