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ONE Engine Text Uppercase Converter
x402
ONE Engine Text Uppercase Converter is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.0015/call, status unknown (last checked 2026-10-02).
Converts input text to uppercase (all capital letters) via a pay-per-call API using x402 on Base.
Price / call$0.0015
Success—
StatusUnknown
How this service works
Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.
Output
A JSON object containing the uppercased version of the submitted text, with all alphabetic characters converted to their capital equivalents and non-alphabetic characters preserved.
Example use cases
Normalize labels for data pipeline
“I need to uppercase all these product category names before inserting them into the database: 'electronics, home goods, sporting equipment, toys, apparel' — convert them all to caps.”
Prepare text for display headers
“Convert this headline to all uppercase for our banner: 'Summer Sale — Up to 50% Off All Items This Weekend Only'”
Standardize user input for matching
“Take this user-submitted country name and convert it to uppercase so I can match it against our reference list: 'united states of america'”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v3/text-normalize/uppercase/t4?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a reliable, low-cost, pay-per-call uppercase conversion without managing your own string processing infrastructure, especially in agent workflows already using x402 micropayments on Base. Ideal for agentic pipelines that need stateless, single-purpose text normalization utilities at $0.0015 per call.
Side effects
- Text exceeds 50,000 character limit — request rejected
- Empty text field — likely returns an error or empty result
- Payment failure via x402 — 402 response if USDC balance insufficient or payment not attached
- Malformed JSON body — 400 bad request
- Network timeout on the Cloudflare Workers edge
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| textrequired | string | Text up to 50000 characters |
Output
Schema · Response
{
"type": "object",
"additionalProperties": true
}Tags
x402
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