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Unicode String Normalizer (NFC/NFD/NFKC/NFKD)
x402
Unicode String Normalizer (NFC/NFD/NFKC/NFKD) is a paid API for AI agents from encoding.openverbs.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).
Normalizes a Unicode string to a specified normalization form (NFC, NFD, NFKC, or NFKD)
Price / call$0.002
Success—
StatusUnknown
How this service works
Apply a Unicode normalisation form (NFC, NFD, NFKC or NFKD) to a string. Reports whether the text changed and its length in UTF-16 code units and code points.
Output
A normalized version of the input string in the requested Unicode normalization form (NFC by default, or NFD, NFKC, NFKD if specified). The response contains the transformed text with all code point sequences canonically reordered and composed or decomposed according to the chosen form.
Example use cases
Standardize user-submitted text
“I'm getting inconsistent unicode from user form inputs — can you normalize this string 'ñoño Ångström' to NFC so all characters are in composed canonical form?”
Decompose characters for text search
“Take this text 'Héllo Wörld' and convert it to NFD normalization so I can strip the diacritics and do accent-insensitive searching.”
Apply compatibility normalization for legacy systems
“I need to send this string 'file №42 ½' to a legacy system that can't handle Unicode compatibility characters — can you normalize it to NFKC to replace those ligatures and special symbols with their equivalent standard characters?”
Technical details
Endpoint
POSThttps://encoding.openverbs.com/v1/normalizeWhen to prefer
Use this endpoint when you need a reliable, pay-per-call hosted API for Unicode normalization without running your own infrastructure, especially when processing user-submitted or cross-system text that may have inconsistent unicode representations. Prefer this over rolling your own normalization logic when building lightweight agents or pipelines that process multilingual text.
Side effects
- Missing required 'text' field returns a validation error
- Invalid normalization form enum value (not NFC/NFD/NFKC/NFKD) returns a 400 error
- Empty string may return empty result or validation error
- Non-UTF-8 binary content may cause parsing failures
- Payment failure via x402 protocol prevents processing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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