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NFC Unicode Normalization API
x402
NFC Unicode Normalization API is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.008/call, status unknown (last checked 2026-09-29).
Normalizes input text to Unicode NFC (Canonical Decomposition followed by Canonical Composition) form without any network calls or LLM involvement
Price / call$0.008
Success—
StatusUnknown
How this service works
Call when an agent needs text normalized with nfc. No network and no LLM. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/norm-nfc first.
Output
Returns the input text transformed into Unicode NFC (Canonical Decomposition, followed by Canonical Composition) normal form. Composed characters replace any equivalent decomposed sequences, yielding a standardized, canonical Unicode string.
Example use cases
Normalize user-submitted form input
“I'm getting inconsistent Unicode from user submissions — can you normalize this string to NFC so I can store it consistently: 'e erence café naïve'?”
Prepare text for Unicode-safe string comparison
“Before I compare these two strings for equality, normalize this one to NFC Unicode: 'Ångström résumé' — I want to make sure decomposed characters don't cause false mismatches.”
Sanitize multilingual content before indexing
“I need to NFC-normalize this Japanese and accented Latin text before indexing it: '東京 café' — can you run it through NFC normalization?”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/norm-nfc?utm_source=zero.xyzWhen to prefer
Prefer this endpoint when you need a deterministic, pure-compute NFC Unicode normalization with no external network calls or LLM overhead, and when the $0.008 USDC flat fee is acceptable. Use the free sandbox endpoint (POST /v1/sandbox/norm-nfc) first if available. Choose this over general-purpose text cleaning services when you specifically need Unicode NFC form for internationalization, string comparison, or data storage consistency.
Side effects
- Empty or missing text field returns a validation error
- Text exceeding 100,000 characters is rejected
- Malformed JSON body returns a 400 error
- Payment not included or insufficient USDC results in a 402 Payment Required response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | Input for this SKU. The route description says whether it is plain text, a URL, base64 bytes, or an already-encoded token. |
Tags
x402
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