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Delx Commerce — Unique Words Extractor
x402
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
Price / call$0.001
Success—
StatusUnknown
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'.
Example use cases
Vocabulary audit for content editor
“Take this blog post draft and give me a list of every unique word used — I want to see the full vocabulary and total distinct word count before I submit it.”
Duplicate word detection in student essay
“Can you extract all unique words from this student essay and tell me how many distinct words they actually used? Here's the text: 'Students often repeat words. Repetition in essays is common. Common repetition weakens essays.'”
Token set analysis for NLP pipeline
“Run this raw customer feedback corpus through the unique-words extractor and return the deduplicated word list and count so I can feed it into my next processing step.”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/unique-words?utm_source=zero.xyzWhen to prefer
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.
Side effects
- 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
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | Primary text input (max 100k chars). Processed first-party; not retained as a dataset. |
Output
Schema · Response
{
"type": "json",
"example": {
"count": 3,
"words": [
"agent",
"hello",
"world"
],
"schema": "delx/unique-words/v1",
"total_tokens": 3
}
}Tags
x402
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