# Delx Commerce — CSV Duplicate Rows Detector

> Delx Commerce — CSV Duplicate Rows Detector is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).

Detects and identifies duplicate rows in CSV-formatted text, returning the row indices of duplicates without retaining the input data.

## Facts

- Endpoint: POST https://commerce.delx.ai/api/v1/x402/csv-duplicate-rows?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/delx-commerce-csv-duplicate-rows-detector-ce6fc8fe
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_na-YFtON0A6n0gAH6r_kN

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 delx-commerce-csv-duplicate-rows-detector-ce6fc8fe -d '<json body>'
```

Example prompt: Can you check this CSV data for duplicate rows and tell me which row numbers are repeated? Here's the CSV: 'name,age\nAlice,30\nBob,25\nAlice,30'

## When to prefer this

Choose this endpoint when you need a fast, pay-per-call, no-signup check for duplicate rows in CSV text with verifiable privacy guarantees (no data retained, input hash provided as proof). Ideal for AI agents operating in automated ETL pipelines, data validation workflows, or one-off data quality checks where a full data platform integration is unnecessary. Prefer this over general-purpose code execution when you need a deterministic, auditable result with a cryptographic evidence trail.

## Known failure modes

- Input text exceeds 8192 character limit — returns an error or truncation
- Malformed or non-CSV text provided — may produce unreliable or empty duplicate detection
- Payment not completed via x402 protocol — request blocked before processing
- Empty input string — may return unique:true with no duplicate rows listed

## How this service works

Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.

## Output

Returns a JSON object indicating whether the CSV has any duplicate rows (unique: true/false), a list of the duplicate row indices, an operation identifier, an advisory status, and an evidence block containing the SHA-256 hash of the input and confirmation that no data was retained and no external calls were made.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "maxLength": 8192,
   "description": "Text supplied to CSV Duplicate Rows; used only for this bounded calculation and processed in memory without retention."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": {
   "unique": false,
   "duplicate_rows": [
    3
   ]
  },
  "schema": "delx/util-csv-duplicate-rows/v1",
  "status": "advisory",
  "evidence": {
   "retained": false,
   "input_sha256": "c399dc1bd240bdbc8a7548ed2a7ecb60cb01c85a8a9aaac086fbc37bae868dad",
   "external_calls": 0
  },
  "operation": "data_batch:csv_duplicate_rows"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-commerce-csv-duplicate-rows-detector-ce6fc8fe/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from commerce.delx.ai](https://www.zero.xyz/host/commerce.delx.ai/llms.txt)