# Definition Lists — Distinct Attribute Values Extractor

> Definition Lists — 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 2026-10-16).

Extracts a deduplicated set of distinct values for a specified HTML attribute from definition list (<dl>) elements on a given webpage or HTML snippet.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-web-definition-lists-attribute-values?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/definition-lists-distinct-attribute-values-extractor-04ab5b2a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_U3ahjvJ048fQg34YAU364

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-lists-distinct-attribute-values-extractor-04ab5b2a -d '<json body>'
```

Example prompt: Parse the page at https://example.com/glossary and give me all distinct values of the 'data-kind' attribute found on definition list elements that mention the term 'product', excluding any you've already seen like 'Older example'.

## When to prefer this

Use this endpoint when you need to enumerate all unique values of a specific HTML attribute on <dl> definition list elements from a static web page or raw HTML snippet, particularly for auditing consistency, building inventories of structured term attributes, or filtering out previously seen values. Prefer this over general-purpose scrapers when the target content is specifically definition lists and you need a deduplicated attribute-value result without JavaScript rendering overhead.

## Known failure modes

- URL is unreachable or returns a non-200 status — no content to parse
- Supplied HTML has no <dl> elements matching the term — empty result set returned
- Attribute name does not match pattern ^[a-zA-Z][a-zA-Z0-9:_-]{0,49}$ — validation error
- HTML exceeds 100,000 character limit — input rejected
- URL exceeds 2048 character limit — input rejected
- Page requires JavaScript rendering — static parser returns incomplete or empty results
- Login-gated or access-restricted pages return no usable content

## How this service works

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

## Output

Returns a bounded set of distinct, deduplicated values found for the specified HTML attribute across all matching <dl> elements on the parsed page or HTML snippet, filtered by the given term and optionally excluding previously seen values. No JavaScript rendering is performed — only static HTML is parsed.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "default": "",
   "maxLength": 2048
  },
  "html": {
   "type": "string",
   "default": "<!doctype html><html><head></head><body><dl id=\"sample\" data-kind=\"example\">Example product guide</dl></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-lists-distinct-attribute-values-extractor-04ab5b2a/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)