{"uid":"cap__WFMZhKt2Z7GKa-ERYlK0","slug":"utunumus-studio-text-to-speech-bc7c1131","name":"utunumus studio – Text-to-Speech","description":"x402-paid media utilities for agents: background removal, upscaling, text-to-speech, image generation. Paid per deliverable, settled on Base.","url":"https://studio.utunumus.com/v1/audio.speech","method":"POST","headers":{},"bodySchema":{"type":"object","required":["prompt"],"properties":{"prompt":{"type":"string"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.012","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":"$0.012/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.012","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.012","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_oTPO1eYO8EGmW1VpWTjMa","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.012","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Converts a text prompt into spoken audio, billed per request via x402 micropayment on Base.","exampleAgentPrompt":"Can you turn this paragraph into spoken audio: 'Welcome to our weekly product update. Here's what's new this week at Acme Corp.'","exampleUseCases":[{"title":"Automated podcast intro narration","prompt":"Generate a voiced intro for my podcast episode using this script: 'You're listening to The Future Stack, the show where we break down AI tools for builders. I'm your host, and today we're diving into autonomous agents.'"},{"title":"Accessibility audio for article","prompt":"Convert this article summary into speech so visually impaired users can listen to it: 'Researchers at MIT have developed a new battery chemistry that could double the range of electric vehicles while cutting costs by 40 percent.'"},{"title":"Agent-facing onboarding narration","prompt":"Create an audio narration for an onboarding flow with this text: 'Hi there, welcome aboard! Let's get you set up in under three minutes. First, we'll connect your calendar, then sync your contacts.'"}],"resultDescription":"An audio file or audio data containing the synthesized speech of the provided text prompt, ready for playback or distribution.","failureModes":["Missing or empty prompt field returns a 400 validation error","Insufficient USDC balance or failed x402 payment results in a 402 Payment Required response","Prompt too long may exceed model or service limits, returning a 413 or 422 error","Network or model backend unavailability returns a 503 error"],"whenToPreferThis":"Choose this endpoint when your agent needs per-call, pay-as-you-go text-to-speech without a subscription, settled on-chain via x402 on Base. Ideal for agents that generate audio on demand without committing to a monthly TTS plan, or for workflows where micropayment auditability matters.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T12:33:56.189Z","isFirstParty":false}