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Unicode Normalize & Codepoint Analyzer
x402
Unicode Normalize & Codepoint Analyzer is a paid API for AI agents from api.24klabs.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).
Applies NFC/NFD/NFKC/NFKD Unicode normalization to a string and returns per-codepoint metadata (name, category, script), flagging mixed-script and potential homoglyph attacks.
Price / call$0.001
Success—
StatusUnknown
How this service works
Apply NFC/NFD/NFKC/NFKD normalization and report per-codepoint name, category and script, flagging mixed-script (possible homoglyph) strings.
Output
Returns the normalized form of the input string, along with a per-codepoint breakdown including each character's Unicode name, general category (e.g. Ll, Lu, Nd), and script (e.g. Latin, Cyrillic, Han). Also includes a boolean mixed-script flag and any detected homoglyph/confusable warnings for security review.
Example use cases
Phishing domain homoglyph detection
“Check this domain 'xn--pypal-4ve.com' — normalize it with NFKC and tell me if any characters are from mixed scripts or look like Latin lookalikes that could be used for a phishing attack.”
Username input sanitization
“A user just signed up with the display name 'Αdmin' — run NFC normalization on it and flag whether it mixes scripts or contains any homoglyph characters that might be impersonating 'Admin'.”
Canonical text deduplication before indexing
“I need to normalize these product titles before storing them — apply NFKC to 'Ｈello Ｗorld' and give me the normalized output plus a breakdown of each codepoint's Unicode category and script.”
Technical details
Endpoint
POSThttps://api.24klabs.ai/api/v1/unicode-normalizeWhen to prefer
Use this endpoint when you need both Unicode normalization and security-aware codepoint analysis in one call — specifically when detecting homoglyph/confusable character attacks in usernames, domains, or free-text input. Prefer it over a basic string normalize function when you need per-codepoint script/category metadata or mixed-script detection. It is a pay-per-call x402 micropayment service, making it suitable for on-demand agent workflows without subscription overhead.
Side effects
- Invalid normalization form specified — returns 400 with supported forms listed
- Input string contains unpaired surrogates or malformed UTF-8 — returns 400 or error per codepoint
- Empty string input — may return empty array with no warnings
- Payment not attached or insufficient — returns 402 requiring x402 USDC micropayment
- Request timeout for very long strings
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| form | string | |
| text | string |
Output
Schema · Response
{
"type": "json",
"example": {
"normalized": "file"
}
}Tags
x402
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