# Definition Descriptions — Word Frequency Analyzer

> Definition Descriptions — Word Frequency Analyzer is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-16).

Counts word frequencies within HTML definition description elements (dd tags) on a given webpage, scoped to a specific element by attribute and value.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-web-definition-text-words?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/definition-descriptions-word-frequency-analyzer-4f34aec0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zL6W-INcwzQCHOUm11Prd

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 definition-descriptions-word-frequency-analyzer-4f34aec0 -d '<json body>'
```

Example prompt: Count how often the word 'product' appears in the definition description element with id 'sample' on https://example.com/guide — fetch the page as-is, no JavaScript needed.

## When to prefer this

Use this endpoint when you need to count word frequency specifically within HTML definition description elements (dd tags) on a static webpage, scoped precisely by an HTML attribute (like id or data-kind) and its value. It is ideal for glossary pages, product description parsing, or documentation analysis where content is server-rendered and no login or JavaScript execution is needed. Prefer this over general text scrapers when your target is a specific named element rather than full-page text.

## Known failure modes

- URL is inaccessible or returns a non-200 response — frequency result may be empty or error returned
- Element with specified attribute and value not found in the HTML — returns zero or empty result
- Term not present in the targeted element — returns zero count
- HTML exceeds 100,000 character limit — request rejected
- JavaScript-rendered content is required but not supported — dynamic content will not be captured
- Malformed attribute name fails regex pattern validation — request rejected

## How this service works

Definition descriptions — Word frequency: Word frequency for Definition descriptions. 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 word frequency result.

## Output

A bounded word frequency result indicating how many times the specified term appears within the targeted definition description (dd) element on the page, parsed statically from the supplied URL or raw HTML without JavaScript rendering.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "default": "",
   "maxLength": 2048
  },
  "html": {
   "type": "string",
   "default": "<!doctype html><html><head></head><body><dd id=\"sample\" data-kind=\"example\">Example product guide</dd></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/definition-descriptions-word-frequency-analyzer-4f34aec0/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)