# Tables — Duplicate Attribute Values

> Tables — 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 2026-10-12).

Parses HTML tables from a URL or raw HTML and returns rows/cells where a specified attribute has a duplicate value matching a given term.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-web-tables-attribute-duplicates?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tables-duplicate-attribute-values-9e4035de
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fl8r6LhF81M5hmQBi_saB

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 tables-duplicate-attribute-values-9e4035de -d '<json body>'
```

Example prompt: Can you check this HTML page for any table cells where the 'id' attribute has a duplicate value of 'sample' — here's the HTML: <!doctype html><html><body><table id='sample'><tr><td>Product A</td></tr></table></body></html>

## When to prefer this

Choose this endpoint when you need to detect duplicate attribute values specifically within HTML table elements, particularly for data quality audits, QA checks on HTML templates, or accessibility validation. It is ideal for static HTML analysis where JavaScript rendering is not needed. Prefer this over generic HTML scrapers when the task is specifically about finding attribute duplication patterns in tabular data.

## Known failure modes

- Invalid or unreachable URL returns an error with no parsed output
- HTML exceeding 100,000 characters is rejected
- Attribute name not matching pattern ^[a-zA-Z][a-zA-Z0-9:_-]{0,49}$ returns validation error
- No duplicates found returns an empty result set
- JavaScript-rendered content not captured since only static HTML is parsed
- Malformed HTML may yield incomplete or unexpected results

## How this service works

Tables — Duplicate attribute values: Duplicate attribute values for Tables. 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 listing table cells or rows where the specified attribute has duplicate values matching the given term and attribute value, based on static HTML parsing of the provided URL or raw HTML content.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "default": "",
   "maxLength": 2048
  },
  "html": {
   "type": "string",
   "default": "<!doctype html><html><head></head><body><table id=\"sample\"><tr><td>Example product guide</td></tr></table></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/tables-duplicate-attribute-values-9e4035de/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)