# Aside Blocks Empty Value Report

> Aside Blocks Empty Value Report is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-20).

Scans a webpage or HTML snippet for aside elements and reports which ones have empty or missing attribute values.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-web-asides-empty?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/aside-blocks-empty-value-report-30a90e7f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ElA4GKTXgk8DsRxbthANQ

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-empty-value-report-30a90e7f -d '<json body>'
```

Example prompt: Can you scan this page https://example.com/docs and give me a report on any aside blocks that have an empty 'data-kind' attribute, searching for the term 'guide'?

## When to prefer this

Use this endpoint when you need a lightweight, static-parse audit of HTML aside elements for empty or missing attribute values — particularly when you don't need JavaScript rendering and want a cheap, fast check ($0.01 USDC). Prefer this over a full DOM-rendering scraper when the target page delivers aside blocks in raw HTML and you only need attribute emptiness analysis, not full content extraction.

## Known failure modes

- URL is unreachable or returns a non-200 HTTP status
- HTML payload exceeds 100,000 character limit
- Attribute name does not match pattern (must start with a letter, alphanumeric/colon/underscore/hyphen only)
- No aside blocks found on the page
- Page requires JavaScript rendering (not supported — static parsing only)
- Login-gated or access-restricted pages cannot be parsed
- Term parameter missing or below minimum length of 1

## How this service works

Aside blocks — Empty value report: Empty value report 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 empty value report result.

## Output

Returns a bounded empty value report listing aside HTML elements found on the page or in the supplied HTML that have empty or missing values for the specified attribute, along with contextual details about each affected aside block.

## 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-empty-value-report-30a90e7f/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)