# Textarea Defaults — Duplicate Attribute Values

> Textarea Defaults — Duplicate Attribute Values is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).

Parses an HTML page or snippet to find textarea elements that share duplicate values for a specified attribute, returning matched results filtered by a search term and excluding previously seen texts.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-web-textareas-attribute-duplicates?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/textarea-defaults-duplicate-attribute-values-43dbeed6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5m63IWqB30H6Zq2cbOBMC

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 textarea-defaults-duplicate-attribute-values-43dbeed6 -d '<json body>'
```

Example prompt: Check this HTML page at https://example.com/form for any textarea elements that have duplicate values for the 'id' attribute — I'm looking for ones that match 'sample' and haven't been seen before.

## When to prefer this

Use this endpoint when you need to statically audit HTML (from a URL or raw snippet) specifically for duplicate attribute values on textarea elements — particularly useful for form validation, accessibility audits, or QA pipelines where duplicate IDs or data attributes on textareas would cause bugs. Choose this over generic HTML validators when you need targeted textarea-scoped attribute deduplication with term filtering and incremental deduplication via previous_texts.

## Known failure modes

- URL is unreachable or returns non-200 status — no HTML to parse
- Provided HTML exceeds 100,000 character limit — request rejected
- Attribute name does not match pattern ^[a-zA-Z][a-zA-Z0-9:_-]{0,49}$ — validation error
- Term is empty or missing — minLength violation
- No textareas found in HTML — empty result set
- Duplicate attribute values not found for specified attribute/value combination — empty result
- Payment not processed — x402 payment required error

## How this service works

Textarea defaults — Duplicate attribute values: Duplicate attribute values for Textarea defaults. 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 duplicate attribute values result.

## Output

Returns a bounded result set identifying textarea elements in the provided HTML (or fetched URL) whose specified attribute contains the given attribute value in duplicate, filtered by the search term and excluding any previously recorded text strings. The response includes one duplicate attribute values result 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><textarea id=\"sample\" data-kind=\"example\">Example product guide</textarea></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/textarea-defaults-duplicate-attribute-values-43dbeed6/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)