# Page Titles — Duplicate Value Report

> Page Titles — Duplicate Value Report is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-13).

Checks a webpage or HTML snippet for duplicate page title values against a set of previously seen titles, returning a structured duplicate-detection report.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-web-title-duplicates?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/page-titles-duplicate-value-report-d31ffb67
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nz8Uo17C-qHr6ZNCkgl1n

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-titles-duplicate-value-report-d31ffb67 -d '<json body>'
```

Example prompt: Check this URL https://example.com/guide for duplicate page titles against these previously seen titles: ['Home | Acme', 'About Us | Acme', 'Product Guide | Acme'] — look for the title element by id 'main-title' and flag anything that matches.

## When to prefer this

Use this endpoint when you need a lightweight, fast, static-parse duplicate title check for a single page or HTML snippet without needing JavaScript rendering or authentication. Ideal for SEO auditing pipelines, pre-publish content validation, or CMS deduplication workflows where you maintain a running list of known titles and want to check each new page against them at low cost ($0.01 per call).

## Known failure modes

- URL is unreachable or returns a non-200 HTTP status — report will fail or return empty
- Page requires JavaScript rendering — static parser will not see dynamically injected titles
- HTML does not contain a matching element for the given attribute/attribute_value — no title extracted
- previous_texts array is empty — no comparison baseline, resulting in no duplicates detected
- HTML exceeds 100,000 character limit — request rejected
- Attribute value pattern mismatch — invalid attribute name causes validation error

## How this service works

Page titles — Duplicate value report: Duplicate value report for Page titles. One public HTTPS page or supplied HTML; static parsing, no JavaScript rendering, login or access bypass. Specialised preset in a shared 50-profile, 20-operation engine. 0.01 USDC includes one bounded duplicate value report result.

## Output

A bounded duplicate value report indicating whether the page title extracted from the given URL or HTML matches any of the previously provided title strings, including details of which titles are duplicated and relevant match context.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "default": "",
   "maxLength": 2048
  },
  "html": {
   "type": "string",
   "default": "<!doctype html><html><head></head><body><title id=\"sample\">Example product guide</title></body></html>",
   "maxLength": 100000
  },
  "term": {
   "type": "string",
   "default": "product",
   "maxLength": 100,
   "minLength": 1
  },
  "attribute": {
   "type": "string",
   "default": "id",
   "pattern": "^[a-zA-Z][a-zA-Z0-9:_-]{0,49}$",
   "maxLength": 50
  },
  "previous_texts": {
   "type": "array",
   "items": {
    "type": "string",
    "default": "",
    "maxLength": 1000
   },
   "default": [
    "Older example"
   ],
   "maxItems": 200,
   "minItems": 0
  },
  "attribute_value": {
   "type": "string",
   "default": "sample",
   "maxLength": 200
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/page-titles-duplicate-value-report-d31ffb67/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)