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Delx Commerce — Character Count API
x402
Delx Commerce — Character Count API 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).
Counts characters, words, lines, and UTF-8 bytes in a given text string, returning precise metrics for pay-per-result via x402.
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
A JSON object with four fields: chars (total character count), words (total word count), lines (total line count), bytes_utf8 (total UTF-8 byte size), plus a schema identifier string 'delx/char-count/v1'.
Example use cases
Validate tweet length before posting
“Can you count the characters in this tweet draft so I know if it's under 280 characters? Here's the text: 'Excited to announce our new product launch — join us live this Thursday at 3pm ET for the big reveal!'”
Check article word count for editor
“My editor needs the exact word and line count for this article intro before I submit it — can you run it through the character counter? The text is: 'Artificial intelligence is reshaping how we work, communicate, and create. From chatbots to autonomous agents, the pace of change has never been faster.'”
Measure API payload size in bytes
“Before I send this string as a payload, can you tell me exactly how many UTF-8 bytes and characters it is? The string is: 'user_id=42&action=purchase&item=deluxe_plan×tamp=1716230400'”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/char-count?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-use, no-signup text metric computation with exact character, word, line, and UTF-8 byte counts returned together in a single call. Ideal for agents that need quick text measurement without integrating a heavier NLP or content platform, and for workflows where verifiable per-call micropayment billing via USDC/x402 is preferred over subscription APIs.
Side effects
- Text exceeding 100,000 characters returns a validation error
- Missing or empty 'text' field in request body returns an error
- Payment failure via x402 results in 402 Payment Required before processing
- Malformed JSON body returns a parsing 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": {
"chars": 17,
"lines": 1,
"words": 3,
"schema": "delx/char-count/v1",
"bytes_utf8": 17
}
}Tags
x402
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