# Description Metadata Duplicate Value Report

> Description Metadata 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).

Parses a webpage or HTML snippet to detect duplicate values in description metadata elements and report conflicts with previous known values.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-web-description-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/description-metadata-duplicate-value-report-2d35a4ee
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FFGLLN4zangj2kHgkSXfA

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 description-metadata-duplicate-value-report-2d35a4ee -d '<json body>'
```

Example prompt: Check this page https://example.com/product for duplicate description metadata — specifically look for elements with the id attribute set to 'main-desc', and compare against these previously seen descriptions: 'Best widgets online', 'Shop premium widgets here'.

## When to prefer this

Choose this endpoint when you need a lightweight, static-parse-only check for duplicate description metadata values on a single page or HTML snippet, especially when comparing against a known list of previously seen descriptions. It is ideal for SEO auditing pipelines, pre-publish content checks, and metadata deduplication workflows where JavaScript rendering is not required and cost-efficiency matters at $0.01 per call.

## Known failure modes

- URL is inaccessible or returns a non-200 status — parsing cannot proceed
- JavaScript-rendered content is not captured since only static HTML is parsed
- HTML is too large and exceeds the 100,000 character limit
- No description metadata found on the page — report returns empty result
- URL and html both empty — endpoint cannot determine content to parse
- previous_texts list exceeds 200 items — request rejected
- attribute pattern does not match allowed format — validation error

## How this service works

Description metadata — Duplicate value report: Duplicate value report for Description metadata. 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

Returns a bounded duplicate value report indicating whether the description metadata on the given page or HTML snippet contains values that duplicate previously supplied texts or that appear multiple times within the page, including details about the matched elements and attribute values.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "default": "",
   "maxLength": 2048
  },
  "html": {
   "type": "string",
   "default": "<!doctype html><html><head></head><body><meta name=\"description\" content=\"Example product guide\" id=\"sample\"></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/description-metadata-duplicate-value-report-2d35a4ee/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)