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Japanese Text Normalization & Transliteration API
x402
Japanese Text Normalization & Transliteration API is a paid API for AI agents from jp-data-api-production.up.railway.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Normalizes Japanese text by converting full-width/half-width characters, converting between katakana and hiragana, and transliterating kana to Hepburn romaji
Price / call$0.005
Success—
StatusUnknown
How this service works
Japanese text normalization and transliteration: full-width/half-width unification, katakana-hiragana conversion, kana to romaji (Hepburn romanization). Use for search indexing, name matching, deduplication, NLP preprocessing, reading Japanese names and addresses.
Output
Returns the input text converted to the specified script or normalization form — e.g. romaji (Hepburn), hiragana, katakana, or width-unified text — as a normalized string ready for display, indexing, or further NLP processing.
Example use cases
Example prompt
“Can you convert this Japanese text '東京タワー' to romaji using Hepburn romanization?”
Technical details
Endpoint
GEThttps://jp-data-api-production.up.railway.app/text/normalizeWhen to prefer
Use this endpoint when you need to normalize or transliterate Japanese text for search indexing, name matching, deduplication, or NLP preprocessing. Ideal when you need Hepburn romaji output from kana, or need to unify full-width/half-width character variants for consistent string comparison. Prefer this over general translation APIs when the goal is script conversion within Japanese rather than meaning-based translation.
Side effects
- Missing required 'text' query parameter returns an error
- Invalid 'to' enum value (not romaji/hiragana/katakana/width) returns an error
- Non-Japanese or empty string input may return unchanged or empty output
- Network timeout or Railway hosting downtime returns 5xx
- Payment not processed or x402 flow incomplete returns 402
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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