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ONE Engine Text Capitalize
x402
ONE Engine Text Capitalize is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.0009/call, status unknown (last checked 2026-10-02).
Capitalizes the first letter of a text string, returning the transformed result.
Price / call$0.0009
Success—
StatusUnknown
How this service works
Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.
Output
A JSON object with a 'text' field containing the input string with its first character capitalized (e.g. {"text": "One engine"}).
Example use cases
Normalizing user-submitted form input
“Before saving this user's display name to the database, capitalize it so it looks right — the input is 'alice johnson'.”
Formatting generated labels for UI display
“I have a category tag from our system that came out as 'electronics' — capitalize it so it looks clean in the dashboard header.”
Fixing sentence starts in agent-generated content
“This sentence my agent produced starts lowercase: 'the report is ready.' — capitalize it before we send it to the user.”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v1/text/capitalize?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-call string capitalization utility without spinning up your own text processing logic. It is ideal for AI agents on Base that already use x402 micropayments and need to normalize or format short strings cheaply ($0.0009 USDC per call). It is not suitable for bulk batch processing of large text corpora or for full title-case/all-caps transformations.
Side effects
- Missing or empty 'text' field in request body — likely returns a 400 error or unexpected output
- Non-string value for 'text' field — may cause a type error or malformed response
- Network timeout or Cloudflare Worker cold-start latency on first call
- Payment failure via x402 if USDC balance is insufficient — 402 response returned before processing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string |
Output
Schema · Response
{
"type": "json",
"example": {
"text": "One engine"
}
}Tags
x402
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