# Articles — Attribute Extraction

> Articles — Attribute Extraction is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-21).

Extracts a specific HTML attribute value from article elements on a given web page or supplied HTML, using static parsing without JavaScript rendering.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-web-articles-attributes?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/articles-attribute-extraction-9d1ef0be
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ivh6dODKW-lGDqVtSUhRM

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 articles-attribute-extraction-9d1ef0be -d '<json body>'
```

Example prompt: Can you extract the 'data-kind' attribute from all article elements on https://example.com/news — search for elements matching the term 'product' and tell me the attribute values you find?

## When to prefer this

Choose this endpoint when you need to extract a specific HTML attribute from article elements on a public, statically-served webpage or a known HTML snippet, without needing JavaScript rendering, login bypass, or full-page crawling. It is ideal for structured metadata extraction (IDs, data-* attributes, class names) from article tags specifically, at low cost per call.

## Known failure modes

- URL is behind a login or paywall — static parser cannot bypass authentication
- Page requires JavaScript rendering — content invisible to static parser
- Attribute name pattern does not match regex (must start with a letter, alphanumeric/colon/underscore/hyphen, max 50 chars)
- No article element matching the given term is found on the page
- URL is unreachable or returns a non-200 HTTP status
- HTML payload exceeds 100,000 character limit
- URL exceeds 2,048 character limit

## How this service works

Articles — Attribute extraction: Attribute extraction for Articles. 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 attribute extraction result.

## Output

Returns a bounded attribute extraction result containing the value of the specified HTML attribute found on matching article elements from the provided URL or HTML content, parsed statically without JavaScript execution.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "default": "",
   "maxLength": 2048
  },
  "html": {
   "type": "string",
   "default": "<!doctype html><html><head></head><body><article id=\"sample\" data-kind=\"example\">Example product guide</article></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/articles-attribute-extraction-9d1ef0be/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)