{"uid":"cap_0BxkcUEIyckcvzwJfnZ2Y","slug":"cluster-protocol-text-to-speech-d73921af","name":"Cluster Protocol Text-to-Speech","description":"Liberation Engine for Internet Capital Market","url":"https://api.clusterprotocol.ai/v1/audio/speech","method":"POST","headers":{},"bodySchema":{"input":{"type":"object","required":["model","input"],"properties":{"input":{"type":"string","description":"Text to synthesize"},"model":{"type":"string","description":"TTS model slug"},"speed":{"type":"number","maximum":4,"minimum":0.25},"voice":{"type":"string","description":"Voice preset (e.g. 'alloy', 'nova')"}}},"output":{"type":"string","format":"binary","description":"Audio stream (audio/mpeg)"},"properties":{"input":{"required":["method"],"properties":{"method":{"enum":["POST"],"type":"string"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.015","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.015/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.015","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.015","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_rlpT6KiqjCxcvr3z3slzx","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.015","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Converts input text into spoken audio using Cluster Protocol's AI-powered speech synthesis engine","exampleAgentPrompt":"Can you read this paragraph aloud for me and give me an audio file — use a natural-sounding voice: 'Welcome to Cluster Protocol, the liberation engine for the internet capital market.'","exampleUseCases":null,"resultDescription":"An audio file (likely MP3 or WAV) containing the synthesized speech of the provided text, generated by Cluster Protocol's AI voice engine.","failureModes":["Text input too long — exceeds character or token limit","Invalid or unsupported voice/language parameter","Payment authorization failure via x402 protocol","Empty or missing text body returns 400 error","Service unavailable or rate limit exceeded returns 5xx error"],"whenToPreferThis":"Choose this endpoint when you need pay-per-call text-to-speech via the x402 micropayment protocol and want no subscription commitment; particularly suited for AI agents operating in decentralized or crypto-native environments that support USDC payments.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T12:37:24.149Z","isFirstParty":false}