# Address Blocks Text Length Ranking

> Address Blocks Text Length Ranking is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-17).

Ranks address HTML elements by text length on a given webpage, filtered by a specific attribute/value and compared against previous text samples.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-web-addresses-rank?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/address-blocks-text-length-ranking-ac2648ed
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7IIAHhu8eufJrur58-Zbt

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 address-blocks-text-length-ranking-ac2648ed -d '<json body>'
```

Example prompt: Rank the address blocks on https://example.com/contact by text length, focusing on the element with id 'main-address', using 'product' as the search term and comparing against these previous samples: ['Old address line one', 'Former contact block'].

## When to prefer this

Choose this endpoint when you need to statically extract and rank address HTML elements by text length from a single public page or supplied HTML snippet, especially when tracking how address block content length changes over time using previous text baselines. It is ideal for lightweight, no-JS parsing tasks focused specifically on HTML address elements.

## Known failure modes

- URL is inaccessible or returns non-200 status
- No address elements found matching the specified attribute/value pair
- HTML exceeds 100,000 character limit
- Attribute name does not match required pattern (must start with a letter, alphanumeric/colon/underscore/hyphen)
- Term missing or below minimum length of 1 character
- Previous texts array exceeds 200 items
- Page requires JavaScript rendering which is not supported
- URL requires login or access bypass which is not supported

## How this service works

Address blocks — Text length ranking: Text length ranking for Address 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 ranking result.

## Output

Returns a bounded text length ranking result for address HTML elements on the target page or HTML, indicating the relative length of the matched address block text compared to the provided search term context and any previously supplied text samples.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "default": "",
   "maxLength": 2048
  },
  "html": {
   "type": "string",
   "default": "<!doctype html><html><head></head><body><address id=\"sample\" data-kind=\"example\">Example product guide</address></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/address-blocks-text-length-ranking-ac2648ed/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)