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ONE Engine Unicode NFKC Normalization (T5)
x402
ONE Engine Unicode NFKC Normalization (T5) is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.0025/call, status unknown (last checked 2026-10-02).
Normalizes input text to Unicode NFKC form using the T5 model, resolving compatibility characters and canonicalizing encoding.
Price / call$0.0025
Success—
StatusUnknown
How this service works
Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.
Output
Returns a JSON object containing the NFKC-normalized version of the input text, with compatibility characters decomposed and canonically recomposed, ligatures expanded, and encoding standardized.
Example use cases
NLP pipeline text preprocessing
“Before I run this multilingual corpus through my language model, normalize all the text to NFKC unicode — there are a bunch of half-width katakana, ligatures, and compatibility symbols that need to be canonicalized.”
Cleaning scraped web content
“I scraped a bunch of product descriptions from various websites and they have weird unicode artifacts like ① ② fi and ½ — can you NFKC-normalize the text so it's consistent before I index it?”
Standardizing user input before search
“A user just typed '６ｐｍ Ａｍｓｔｅｒｄａｍ' using full-width characters — normalize it to standard NFKC unicode so my search system can match it correctly.”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v3/text-normalize/unicode-nfkc/t5?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need lightweight, pay-per-call NFKC unicode normalization without managing your own NLP infrastructure — especially useful for agents preprocessing text before embedding, search, or model inference. Prefer it over general-purpose NLP APIs when you specifically need unicode canonicalization at low cost ($0.0025/call) and want to pay per use via x402 on Base rather than maintain a subscription.
Side effects
- Text exceeds 50000 character limit — request rejected
- Empty or missing 'text' field — validation error
- Payment not included or insufficient USDC — 402 Payment Required response
- Malformed JSON body — 400 Bad Request
- Service unavailable on Cloudflare Workers — 503 or timeout
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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