# Unordered Lists Duplicate Attribute Values Finder

> Unordered Lists Duplicate Attribute Values Finder is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).

Scans a webpage or HTML snippet for duplicate attribute values across unordered list elements, filtered by a search term.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-web-unordered-lists-attribute-duplicates?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/unordered-lists-duplicate-attribute-values-finder-40949898
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_eRSFf8s3nSotrsTKvH7l-

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 unordered-lists-duplicate-attribute-values-finder-40949898 -d '<json body>'
```

Example prompt: Scan https://example.com/products for duplicate 'class' attribute values across all unordered list elements that contain the word 'nav', and flag any lists that share the same class value.

## When to prefer this

Choose this endpoint when you need fast, static HTML parsing specifically for duplicate attribute value detection within unordered list elements, especially as part of a front-end audit, accessibility check, or HTML quality assurance pipeline. It is ideal when you already have the HTML or a public URL, do not need JavaScript rendering, and want a focused, inexpensive ($0.01 USDC) single-operation result scoped to list markup.

## Known failure modes

- URL is unreachable or returns non-200 status — endpoint may return an error or empty result
- HTML content exceeds 100,000 character limit — request will be rejected
- No unordered lists found in parsed HTML — returns empty duplicate set
- JavaScript-rendered content not captured — static-only parsing may miss dynamic lists
- Invalid attribute name format (must match pattern ^[a-zA-Z][a-zA-Z0-9:_-]{0,49}$) — validation error returned
- URL and HTML both omitted — endpoint requires at least one input source

## How this service works

Unordered lists — Duplicate attribute values: Duplicate attribute values for Unordered lists. 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 attribute values result.

## Output

Returns a bounded result set identifying duplicate attribute values found across unordered list elements in the parsed HTML, including the specific attribute, its repeated value, and the matching list elements — filtered by the provided search term and attribute name.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "default": "",
   "maxLength": 2048
  },
  "html": {
   "type": "string",
   "default": "<!doctype html><html><head></head><body><ul id=\"sample\"><li>Example product guide</li></ul></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/unordered-lists-duplicate-attribute-values-finder-40949898/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)