{"uid":"cap_wUr_51f1uwrwHtlWPv3kV","slug":"agentrxi-text-to-speech-melotts-0fad55ff","name":"AgentRXI Text-to-Speech (MeloTTS)","description":"OpenAI-compatible text to speech (MeloTTS): same request shape as OpenAI /v1/audio/speech (input, voice, model); returns a WAV file. Languages en, es, fr, zh, jp, kr via language. Up to 2000 characters, flat price, no API key. Also callable as GET with the same fields as query parameters.","url":"https://agentrxi.com/v1/audio/speech?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["input"],"properties":{"input":{"type":"string"},"model":{"type":"string","description":"Ignored"},"voice":{"type":"string","description":"Ignored"},"language":{"type":"string","description":"en (default) | es | fr | zh | jp | kr"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_vGKg5ExOiWMqBjDjBqIVF","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Converts text to spoken audio using MeloTTS, returning a WAV file with support for English, Spanish, French, Chinese, Japanese, and Korean.","exampleAgentPrompt":"Can you turn this sentence into spoken audio in French: 'Bonjour, comment puis-je vous aider aujourd'hui?' — just give me back the WAV file.","exampleUseCases":[{"title":"Multilingual voice narration for content","prompt":"Take this product description and synthesize it as speech in Spanish so I can use it in my ad: 'Descubre nuestra nueva colección de verano, fresca y elegante para cada ocasión.'"},{"title":"Accessibility audio for text articles","prompt":"Read this paragraph aloud in Chinese and give me the audio file: '欢迎来到我们的网站，我们提供最优质的服务。'"},{"title":"Quick English voiceover generation","prompt":"Convert this short announcement to speech in English: 'Attention all passengers, the train to London will depart in five minutes from platform three.' — I need a WAV file."}],"resultDescription":"A WAV audio file containing the synthesized speech for the provided text input in the specified language, ready for playback or downstream audio processing.","failureModes":["Input text exceeds 2000 characters — request rejected","Unsupported language code provided — may default to English or return an error","Empty input text — likely returns an error or empty audio","Network timeout for very long synthesis requests","Payment failure (x402) if USDC payment is not properly submitted"],"whenToPreferThis":"Choose this endpoint when you need a simple, flat-rate, no-API-key text-to-speech solution with multilingual support (en, es, fr, zh, jp, kr) and OpenAI-compatible request shape. Ideal for agents already familiar with the OpenAI /v1/audio/speech interface who want a pay-per-call alternative without subscription overhead. Best for short-to-medium texts up to 2000 characters.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-15T06:39:13.285Z","isFirstParty":false,"canonicalSlug":"agentrxi-text-to-speech-melotts-0fad55ff"}