# Delx Commerce — Unique Words Extractor

> Delx Commerce — Unique Words Extractor 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).

Extracts a deduplicated list of unique words from a given text and returns them along with their count

## Facts

- Endpoint: POST https://commerce.delx.ai/api/v1/x402/unique-words?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-unique-words-extractor-0408be27
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_UE0vnHJ_xaelUufL6fhyU

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-unique-words-extractor-0408be27 -d '<json body>'
```

Example prompt: Can you pull out all the unique words from this paragraph and tell me how many distinct ones there are: 'The quick brown fox jumps over the lazy dog. The dog barked loudly.'

## When to prefer this

Choose this endpoint when you need a simple, fast, pay-per-call unique word extraction without any signup or API key management. It is ideal for agents that need to process text on demand and want verifiable, micropayment-based access via x402/USDC. Prefer this over building a custom deduplication step when cost predictability ($0.001 per call) and no-auth simplicity matter.

## Known failure modes

- Text exceeds 100,000 character limit — returns 400 or validation error
- Empty text input — may return zero count with empty words array
- Payment failure via x402 protocol — 402 response if USDC payment not completed
- Malformed JSON body — 400 bad request
- Rate limiting or network timeout — 5xx error

## 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 containing: 'count' (integer, number of unique words), 'words' (array of unique word strings), 'total_tokens' (integer, total tokens processed), and 'schema' identifier 'delx/unique-words/v1'.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "maxLength": 100000,
   "description": "Primary text input (max 100k chars). Processed first-party; not retained as a dataset."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "count": 3,
  "words": [
   "agent",
   "hello",
   "world"
  ],
  "schema": "delx/unique-words/v1",
  "total_tokens": 3
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-commerce-unique-words-extractor-0408be27/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)