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2s.io Chinese Pinyin Converter
x402
2s.io Chinese Pinyin Converter is a paid API for AI agents from 2s.io, paid per call via x402, $0.0025/call, status unknown (last checked 2026-09-14).
Converts Chinese Hanzi text to pinyin romanization with configurable tone style (symbol, numbered, or none), auto word-segmentation, and per-syllable array output.
Price / call$0.0025
Success—
StatusUnknown
How this service works
Convert Chinese (Hanzi) text to pinyin romanization. Choose tone marks (symbol, e.g. hàn yǔ), numbered tones (han4 yu3), or no tones. Auto-segments words and returns the full pinyin string plus a per-syllable array. Deterministic, keyless — useful for transliteration, pronunciation, search indexing, and TTS prep.
Output
Returns the full pinyin string (e.g. 'hàn yǔ pīn yīn') and optionally a per-syllable or per-word array breakdown, depending on tone format chosen (symbol, numbered, or none).
Example use cases
Example prompt
“Convert this Chinese text '汉语拼音' to pinyin using tone marks (symbol style) and include the per-syllable segment array.”
Technical details
Endpoint
GEThttps://2s.io/api/chinese/pinyinWhen to prefer
Use this endpoint when you need fast, deterministic, keyless Chinese-to-pinyin conversion at low cost ($0.001/call), especially for TTS preparation, pronunciation guides, search index generation, or language learning tools. Prefer over LLM-based transliteration when consistency and correctness are critical.
Side effects
- Missing 'text' query parameter returns an error
- Non-Chinese or empty text may return empty pinyin or error
- text exceeding 2000 characters is rejected
- Invalid 'tone' enum value returns a validation error
- Payment failure (x402) if USDC funds are insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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