# Aside Blocks Text Length Statistics

> Aside Blocks Text Length Statistics 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 and returns text length statistics for HTML aside blocks from a given webpage URL or raw HTML input.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-web-asides-lengths?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-text-length-statistics-5f7df6ed
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_92vof3LBFH0FeWLhIf0QS

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-text-length-statistics-5f7df6ed -d '<json body>'
```

Example prompt: Can you pull the text length statistics for all aside blocks on https://example.com/product-guide — specifically look at the ones with the id attribute set to 'sample' and let me know how they compare to the previous text 'Older example'?

## When to prefer this

Use this endpoint when you need fast, static text length statistics specifically for HTML aside elements (sidebars, callouts, supplementary content blocks) on a public HTTPS page or known HTML snippet. It is ideal for content audits, SEO analysis, and monitoring aside text sizes without needing JavaScript rendering or authentication. Prefer this over general-purpose web scrapers when you only need aside block text metrics and want a cost-effective ($0.01 USDC) single-page result.

## Known failure modes

- URL is inaccessible or returns a non-200 status — endpoint cannot fetch page content
- Page requires JavaScript rendering to display aside elements — static parser will miss dynamically injected asides
- No aside blocks found matching the specified attribute/value combination — empty or null result
- HTML input exceeds 100,000 character limit — request rejected
- Malformed attribute pattern (must start with a letter and match regex) — validation error
- Invalid or non-HTTPS URL provided — request rejected

## How this service works

Aside blocks — Text length statistics: Text length statistics 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 text length statistics result.

## Output

Returns text length statistics (e.g. character counts, length metrics) for aside HTML elements found in the provided URL or HTML content, scoped to the specified attribute and attribute value. Results include bounded statistics for one aside block result set per call.

## 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-text-length-statistics-5f7df6ed/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)