# Aside Blocks — Literal Attribute Match Extractor

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

Parses a web page or supplied HTML to find aside elements whose specified attribute value literally matches a given search term, returning bounded results.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-web-asides-attribute-match?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/aside-blocks-literal-attribute-match-extractor-df966a58
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LRT_Al_9Q3Mvzgf5wysRA

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 aside-blocks-literal-attribute-match-extractor-df966a58 -d '<json body>'
```

Example prompt: Can you pull all aside blocks from https://example.com/docs where the data-kind attribute literally matches 'example', filtering out anything already in my previous results list?

## When to prefer this

Choose this endpoint when you need to extract aside/sidebar HTML elements from a static page or supplied HTML where the filtering criterion is an exact (literal) attribute value match on a named attribute. It is ideal for structured content auditing, documentation scraping, or any workflow that needs to isolate apart from the main content stream using HTML attribute identity. It is not suitable for JavaScript-rendered pages, regex or fuzzy attribute matching, or extracting non-aside elements.

## Known failure modes

- URL is unreachable or returns a non-200 status — no content to parse
- HTML exceeds 100,000 character limit — request rejected
- Attribute name fails the required pattern validation — request rejected
- Term or attribute_value is empty or missing — validation error
- No aside elements found matching the specified attribute/value — empty result set
- JavaScript-rendered content not available since endpoint uses static parsing only

## How this service works

Aside blocks — Literal attribute matches: Literal attribute matches for Aside blocks. 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 literal attribute matches result.

## Output

Returns a bounded set of aside block matches from the parsed HTML or fetched page, where the specified attribute value literally equals the given term. Results include the matched aside element content and exclude any entries already present in the previous_texts list.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "default": "",
   "maxLength": 2048
  },
  "html": {
   "type": "string",
   "default": "<!doctype html><html><head></head><body><aside id=\"sample\" data-kind=\"example\">Example product guide</aside></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/aside-blocks-literal-attribute-match-extractor-df966a58/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)