{"uid":"cap_bbkJ-Ym2vLUHxmmvXrce0","slug":"delx-hd-speech-synthesis-586b8aff","name":"Delx HD Speech Synthesis","description":"Generate high-fidelity expressive speech for $0.08 USDC. Call when you need English, Portuguese, or Spanish voiceover with emotion, speed, and pitch for up to 500 UTF-8 bytes—not a phone carrier or realtime session. Returns a validated 32 kHz mono WAV URL and SHA-256 receipt. No API key, no subscription.","url":"https://api.delx.ai/api/v1/x402/speech-hd?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"text":{"type":"string","maxLength":500,"minLength":1,"description":"Text to synthesize; the UTF-8 encoding must not exceed 500 bytes.","x-maxUtf8Bytes":500},"input":{"type":"string","maxLength":500,"minLength":1,"description":"Alias for text; the UTF-8 encoding must not exceed 500 bytes.","x-maxUtf8Bytes":500},"pitch":{"type":"integer","default":0,"maximum":12,"minimum":-12},"speed":{"type":"number","default":1,"maximum":2,"minimum":0.5},"voice":{"enum":["English_Wiselady","English_Deep-VoicedGentleman","English_CaptivatingStoryteller","Portuguese_Wiselady","Portuguese_Deep-VoicedGentleman","Portuguese_CaptivatingStoryteller","Portuguese_Narrator","Spanish_Wiselady","Spanish_Deep-tonedMan","Spanish_CaptivatingStoryteller","Spanish_Narrator"],"type":"string","default":"English_Wiselady"},"emotion":{"enum":["auto","happy","sad","angry","fearful","disgusted","surprised","neutral"],"type":"string","default":"auto"},"language":{"enum":["Automatic","English","French","German","Italian","Japanese","Korean","Portuguese","Spanish"],"type":"string","default":"Automatic"}}},"responseSchema":{"type":"json","example":{"bytes":588252,"model":"minimax/speech-02-hd","pitch":0,"speed":1,"voice":"English_CaptivatingStoryteller","sha256":"7ded32df89c15e721f6e997931b3ee28d40a89635fe35d91b5a496712e95bead","emotion":"happy","channels":1,"language":"English","provider":"replicate","audio_url":"https://api.delx.ai/api/v1/generated-audio-hd/7de36cd5f5f34ef8a28904b9b5985f60.wav","media_type":"audio/wav","duration_ms":9172,"input_tokens":130,"generation_id":"7de36cd5f5f34ef8a28904b9b5985f60","sample_rate_hz":32000,"sale_price_usdc":0.08,"gross_margin_usd":0.067,"provider_attempts":1,"sample_width_bits":16,"upstream_cost_usd":0.013}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.08","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":"$0.08/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.08","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.08","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_tCjogSXv-LE91tFxbkQXL","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.08","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Converts text to high-definition audio using the MiniMax speech-02-hd model with configurable voice, emotion, pitch, speed, and language.","exampleAgentPrompt":"Read this out loud using the English CaptivatingStoryteller voice with a happy emotion at 1.2x speed: 'Welcome to the future of AI-powered content creation — where every word comes alive.'","exampleUseCases":[{"title":"Multilingual podcast intro narration","prompt":"Take this script and narrate it in Portuguese using the Portuguese Narrator voice with a neutral emotion and normal speed: 'Bem-vindo ao nosso podcast semanal sobre tecnologia e inovação.'"},{"title":"Dramatic audiobook chapter read","prompt":"Generate HD audio of this passage using the English CaptivatingStoryteller voice with a sad emotion and 0.9x speed: 'The last light faded from the horizon as she realized she was truly alone.'"},{"title":"Upbeat product announcement voiceover","prompt":"Create a voiceover using the English Deep-VoicedGentleman voice, happy emotion, and 1.1x speed for this text: 'Introducing our newest product — designed for the way you live today.'"}],"resultDescription":"Returns a JSON object containing a URL to a hosted WAV audio file (32000 Hz, 16-bit, mono), plus metadata: generation ID, model name, voice, emotion, language, pitch, speed, duration in milliseconds, byte size, SHA256 hash, input token count, and pricing details including sale price in USDC and upstream cost.","failureModes":["Text exceeds 500 UTF-8 bytes — endpoint rejects with validation error","Invalid voice enum value — returns schema validation error","Speed or pitch outside allowed range — returns 400 error","Upstream Replicate/MiniMax provider failure — returns 502 or retry-exhausted error","Payment not provided or insufficient — x402 payment required response"],"whenToPreferThis":"Choose this endpoint when you need high-definition (speech-02-hd) audio synthesis with fine-grained control over voice character, emotion, pitch, speed, and language — especially for multilingual content in English, Spanish, or Portuguese. Prefer it over standard TTS when audio quality and emotional expressiveness matter, and when per-call micropayment via x402 is acceptable.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-10T06:51:29.633Z","isFirstParty":false,"canonicalSlug":"delx-hd-speech-synthesis-586b8aff"}