# Definition Descriptions – Distinct Attribute Values Extractor

> Definition Descriptions – Distinct Attribute Values Extractor is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-17).

Parses a public webpage or supplied HTML to extract all distinct values of a specified HTML attribute found on elements matching a given term (e.g. all unique `id` values on `<dd>` elements for 'product').

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-web-definition-text-attribute-values?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/definition-descriptions-distinct-attribute-values-extractor-f8d902cd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_t_5n6mXQS7Ci5Vfht8Igr

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 definition-descriptions-distinct-attribute-values-extractor-f8d902cd -d '<json body>'
```

Example prompt: Go to https://docs.example.com/products and pull out all the distinct values of the data-kind attribute on any HTML elements related to 'product', skipping anything already in this list: ['Older example'].

## When to prefer this

Choose this endpoint when you need to enumerate the distinct values of a specific HTML attribute (like id, class, data-*, role, aria-*) across elements that match a particular keyword term on a webpage — especially when you want deduplication against previously seen values. Prefer this over generic scrapers when the task is specifically about attribute-value enumeration on definition/description elements.

## Known failure modes

- URL is inaccessible, paywalled, or requires JavaScript rendering — returns empty or error
- Attribute name doesn't match the regex pattern (must start with a letter, max 50 chars) — validation error
- HTML or URL exceeds size limits (100,000 chars for HTML, 2048 for URL) — truncation or rejection
- No matching elements found for the given term — empty result set
- Previous texts list exceeds 200 items — request rejected

## How this service works

Definition descriptions — Distinct attribute values: Distinct attribute values for Definition descriptions. 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 distinct attribute values result.

## Output

Returns a bounded list of distinct (deduplicated) values found for the specified HTML attribute across all matching elements on the page or HTML fragment, filtered against any previously seen 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><dd id=\"sample\" data-kind=\"example\">Example product guide</dd></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/definition-descriptions-distinct-attribute-values-extractor-f8d902cd/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)