{"uid":"cap_ejiS8RNRxpR_OTbFryOjB","slug":"2s-io-chinese-pinyin-converter-2741dab8","name":"2s.io Chinese Pinyin Converter","description":"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.","url":"https://2s.io/api/chinese/pinyin","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","queryParams"],"properties":{"type":{"const":"http"},"method":{"const":"GET"},"queryParams":{"type":"object","required":["text"],"properties":{"text":{"type":"string","maxLength":2000,"minLength":1},"tone":{"enum":["symbol","num","none"],"type":"string"},"segmented":{"type":"boolean","description":"Include the per-word segment array."}},"additionalProperties":false}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.0025","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.0025/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0025","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0025","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_RsJyIz4-PcjOVmCf0qc72","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0025","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Converts Chinese Hanzi text to pinyin romanization with configurable tone style (symbol, numbered, or none), auto word-segmentation, and per-syllable array output.","exampleAgentPrompt":"Convert this Chinese text '汉语拼音' to pinyin using tone marks (symbol style) and include the per-syllable segment array.","exampleUseCases":null,"resultDescription":"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).","failureModes":["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"],"whenToPreferThis":"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.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:40:24.887Z","isFirstParty":false}