# Unordered Lists Structured Extraction

> Unordered Lists Structured Extraction is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-19).

Extracts and returns structured items from HTML unordered list (<ul>) elements on a public web page or supplied HTML, filtered by a search term and optional element attribute.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-web-unordered-lists-items?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/unordered-lists-structured-extraction-82d77a04
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6IPTGYsP7e1ygGzHFKq_n

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-structured-extraction-82d77a04 -d '<json body>'
```

Example prompt: Extract all the list items from the unordered list with id 'features' on https://example.com/products, filtering for items related to 'pricing'.

## When to prefer this

Use this endpoint when you need to quickly and cheaply extract items from a known HTML unordered list element on a static, publicly accessible page. It is ideal when you know the element's attribute (e.g. id or class) and want structured list items back without needing JavaScript rendering. Prefer it over full-page scrapers when your target content is specifically a <ul> element and you want cost-effective ($0.01/call) targeted extraction.

## Known failure modes

- URL is not publicly accessible or requires login — static parser cannot bypass authentication
- Page content is rendered entirely by JavaScript — no JavaScript execution means lists may be empty
- No matching <ul> element found for the given attribute/attribute_value pair — empty result returned
- Term filter returns no matching list items — empty result
- HTML payload exceeds 100,000 character limit — request rejected
- URL exceeds 2,048 character limit — request rejected
- Rate limits or network errors reaching the target URL

## How this service works

Unordered lists — Structured extraction: Structured extraction 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 structured extraction result.

## Output

A bounded structured extraction result containing the text items found within the matching unordered list element, filtered by the provided search term. Returns up to one extraction result per call, scoped to the specified HTML attribute/value pair if provided.

## 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-structured-extraction-82d77a04/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)