# Button Labels — Duplicate Value Report

> Button Labels — Duplicate 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).

Scans a web page or HTML snippet for button elements and reports duplicate values found in a specified attribute, optionally comparing against previously known values.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-web-buttons-duplicates?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/button-labels-duplicate-value-report-1efb6824
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_41T8z2laAbAbGeH7BRiIU

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 button-labels-duplicate-value-report-1efb6824 -d '<json body>'
```

Example prompt: Check this page for duplicate button ID values — scan https://example.com/checkout, look at the 'id' attribute on all buttons, and flag any that repeat, comparing against my previous list ['submit-btn', 'buy-now'].

## When to prefer this

Use this endpoint when you need a fast, lightweight static-parse check for duplicate attribute values specifically on button elements within a single HTML page or snippet. It is ideal for QA pipelines, accessibility audits, and CI checks where JavaScript rendering is not needed and you only care about button-scoped duplication rather than full-DOM or element-agnostic duplicate detection.

## Known failure modes

- URL is unreachable or returns non-2xx — report generation fails
- HTML exceeds 100,000 character limit — request rejected
- Attribute name pattern does not match allowed format — validation error
- No button elements found in parsed content — empty report returned
- JavaScript-rendered buttons not visible — static parser cannot detect dynamically inserted elements

## How this service works

Button labels — Duplicate value report: Duplicate value report for Button labels. 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 value report result.

## Output

Returns a bounded duplicate value report identifying which attribute values appear more than once across button elements in the parsed page or HTML, including comparison against any previously supplied values list.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "default": "",
   "maxLength": 2048
  },
  "html": {
   "type": "string",
   "default": "<!doctype html><html><head></head><body><button id=\"sample\" data-kind=\"example\">Example product guide</button></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/button-labels-duplicate-value-report-1efb6824/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)