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ONE Engine Unicode NFKC Normalization (Top-10)
x402
ONE Engine Unicode NFKC Normalization (Top-10) is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-02).
Normalizes input text up to 50,000 characters using Unicode NFKC normalization, returning the top 10 normalized results.
Price / call$0.03
Success—
StatusUnknown
How this service works
Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.
Output
Returns an object containing the top 10 NFKC-normalized representations of the submitted text, allowing the caller to choose the most appropriate normalized form for their use case.
Example use cases
Clean user-submitted form input
“I'm getting inconsistent unicode in user-submitted names and addresses — things like fullwidth numbers and fancy ligatures. Can you NFKC-normalize this string for me: 'Ａｄｄｒｅｓｓ：１２３ Ｍａｉｎ Ｓｔ first floor'?”
Prepare text for search indexing
“Before I index this product description into my search engine, I need it unicode-normalized to NFKC so searches match reliably. Can you normalize this text: 'Ｃａｆé Ｌａｔｔé — fine ｃｏｆｆｅｅ ＆ ｐａｓｔｒｉｅｓ'?”
Normalize multilingual NLP training data
“I have some Japanese text mixed with halfwidth and fullwidth characters that I need standardized before feeding it into my language model. Please NFKC-normalize this: 'ｱｲｳｴｵ アイウエオ ＡＢＣ abc １２３ 123'”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v3/text-normalize/unicode-nfkc/t10?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need lightweight, pay-per-call Unicode NFKC normalization without committing to a full NLP service subscription. Ideal for agents preprocessing user input, search queries, or multilingual data where fullwidth/halfwidth character consistency, ligature removal, or compatibility decomposition is required. The t10 variant is best when you want multiple candidate normalized forms rather than a single deterministic output.
Side effects
- Text exceeds 50,000 character limit — request rejected
- Payment not included or insufficient — 402 Payment Required response
- Malformed JSON body or missing required 'text' field — 400 Bad Request
- Network timeout on Cloudflare Workers edge — retry recommended
- Empty string input may return empty or minimal results
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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