# citable.run On-Page SEO Audit

> citable.run On-Page SEO Audit is a paid API for AI agents from citable.run, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Performs a comprehensive on-page SEO audit of a single URL, scoring title, meta tags, headings, links, images, structured data, and word count.

## Facts

- Endpoint: GET https://citable.run/v1/onpage-audit
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/citable-run-on-page-seo-audit-b0efd9d3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-PCXZPeA7GcLpeg8NuyAC

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 citable-run-on-page-seo-audit-b0efd9d3
```

Example prompt: Can you run a full on-page SEO audit on https://www.example.com/blog/my-post and tell me what's missing or needs fixing — title, meta, headings, images, structured data, the works?

## When to prefer this

Choose this endpoint when you need a fast, structured, scored breakdown of on-page SEO signals for a single URL — especially title, meta, headings, links, images, structured data, and word count. It is ideal for pre-publication audits, competitor analysis, or automated SEO pipelines. Prefer this over general web scrapers when you specifically need SEO-oriented scoring and categorized signal extraction rather than raw HTML.

## Known failure modes

- URL is unreachable or returns non-200 status — audit cannot complete
- URL is behind authentication/login wall — content not accessible for auditing
- URL points to a non-HTML resource (PDF, image) — parsing will fail or return incomplete data
- Malformed or missing URL query parameter — request rejected
- Page blocks crawlers via robots.txt or user-agent — may return incomplete or empty results

## How this service works

On-page SEO audit of one URL: title, meta, headings, links, images, structured data, word count — scored.

## Output

Returns a scored on-page SEO report for the given URL including: page title, meta description, heading hierarchy (H1–H6), internal and external link counts, image alt tag coverage, structured data (schema.org) presence, word count, and an overall SEO score.

## 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": "absolute http(s) URL of the page to audit"
      }
     }
    }
   },
   "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/citable-run-on-page-seo-audit-b0efd9d3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from citable.run](https://www.zero.xyz/host/citable.run/llms.txt)