# Definition Descriptions — Empty Value Report

> Definition Descriptions — 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 2026-10-21).

Parses a webpage or supplied HTML to report on empty or missing description text within definition (dd) elements matching a given term and attribute.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-web-definition-text-empty?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/definition-descriptions-empty-value-report-386c51dd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WO-9mbJWyNEbdZy0yPmon

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-empty-value-report-386c51dd -d '<json body>'
```

Example prompt: Can you check this product page for any dd elements with the id attribute set to 'definition-block' that have empty or missing description text — the term I care about is 'widget', and the previous descriptions were 'Old widget info'?

## When to prefer this

Choose this endpoint when you need to audit static HTML or a publicly accessible webpage for empty or missing text within definition description (dd) elements, filtered by a specific attribute and value. It is ideal for content quality checks, CMS audits, or documentation validation workflows where you want to confirm that definition fields are populated. Prefer this over generic HTML scrapers when the specific concern is blank or absent description text in definition list structures.

## Known failure modes

- URL is unreachable or returns a non-200 response, resulting in no HTML to parse
- HTML exceeds the 100,000 character limit and is rejected
- Term parameter is missing or empty, causing a validation error
- Attribute pattern does not match the required format, causing rejection
- No matching dd elements found for the given attribute and value, returning an empty report
- JavaScript-rendered content is not parsed since only static HTML is analyzed

## How this service works

Definition descriptions — Empty value report: Empty value report 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 empty value report result.

## Output

Returns a bounded empty value report indicating which definition description (dd) elements in the provided page or HTML have empty or missing text values, given the specified term, attribute, and attribute value. Includes up to one result entry covering the matching elements found to be blank or unpopulated.

## 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-empty-value-report-386c51dd/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)