{"uid":"cap_kK5WIyBcCE5qFsEgBbhqM","slug":"seed-audio-1-0-text-to-speech-sol-blockrun-ai-6a562535","name":"Seed Audio 1.0 Text-to-Speech (sol.blockrun.ai)","description":"ElevenLabs v3 text-to-speech","url":"https://sol.blockrun.ai/api/v1/audio/speech?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"input":{"type":"string","description":"Text to synthesize into speech"},"model":{"type":"string","description":"Speech model ID (e.g., elevenlabs/flash-v2.5)"},"speed":{"type":"number","description":"Playback speed 0.7-1.2 (optional)"},"voice":{"type":"string","description":"Voice alias (e.g., sarah, george) or raw ElevenLabs voice_id"},"response_format":{"type":"string","description":"Audio format: mp3 (default), opus, pcm, wav"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.004515","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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":"$0.004515/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004515","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004515","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_yRA6W79bLWoBPBBupRdSL","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.004515","costPer":"request","priority":0,"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Converts text into spoken audio using Seed Audio 1.0 TTS with configurable voice, speed, and output format","exampleAgentPrompt":"Can you read this aloud and save it as an mp3 using the 'sarah' voice at normal speed: 'Welcome to our quarterly update. Here are the key highlights for this period.'","exampleUseCases":[{"title":"Podcast intro voiceover generation","prompt":"Generate a spoken mp3 of this intro script using the 'george' voice at speed 1.0: 'Hello and welcome to The Daily Briefing. I'm your AI host, and today we're covering the top stories in tech and finance.'"},{"title":"Accessibility audio for written article","prompt":"Convert this article summary to speech using the sarah voice and give me an opus audio file: 'Scientists have discovered a new species of deep-sea fish off the coast of New Zealand, marking a significant breakthrough in marine biology.'"},{"title":"Multilingual voice demo at custom speed","prompt":"Synthesize this announcement as a wav file using the elevenlabs/flash-v2.5 model at 0.85 speed with the george voice: 'Your order has been confirmed and will arrive within three to five business days. Thank you for shopping with us.'"}],"resultDescription":"Returns a binary audio file in the requested format (mp3, opus, pcm, or wav) containing synthesized speech of the input text, rendered with the selected voice model and playback speed.","failureModes":["Invalid or unsupported voice alias returns an error","Speed value outside 0.7–1.2 range may be rejected or clamped","Empty or excessively long input text may fail","Unsupported response_format value causes format error","Payment of $0.085995 USDC must be completed via x402 or request is rejected","Invalid model ID returns model-not-found error"],"whenToPreferThis":"Choose this endpoint when you need pay-per-call text-to-speech synthesis with ElevenLabs-quality voices, configurable format and speed, no subscription required, and payment via USDC on Solana via the x402 protocol. Ideal for agents that need on-demand, low-latency voice generation without managing API keys or monthly plans.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T06:35:55.713Z","isFirstParty":false,"canonicalSlug":"seed-audio-1-0-text-to-speech-sol-blockrun-ai-6a562535"}