{"uid":"cap_TUl8A4Em6IS-9evIKzugi","slug":"linkrra-pearl-pool-text-to-speech-tts-11fbec44","name":"Linkrra Pearl Pool Text-to-Speech (TTS)","description":"OpenAI-compatible inference paid per request in USDC on Base (eip155:8453, scheme exact). GET /v1/models for the model catalogue and per-model USD prices. Every paid route answers unauthenticated requests with an x402 v2 402 challenge (PAYMENT-REQUIRED header + JSON body). Minimum charge $0.01 per paid call on chat/completions and tts (usage-based price applies above it); credit top-ups are $1 minimum. Contact: weare@linkrra.com","url":"https://pool.linkrra.com/api/billing/x402/tts?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","required":["input","output"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object"},"type":{"type":"string"},"method":{"type":"string"},"bodyType":{"type":"string"}}},"output":{"type":"object","required":["type","mimeType"],"properties":{"type":{"type":"string"},"mimeType":{"type":"string"}}}}},"responseSchema":{"type":"binary","example":"<WAV file bytes>","mimeType":"audio/wav"},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_jTz0id86MnvUNCbmkocuZ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Converts text input to speech audio (WAV) via an OpenAI-compatible API, paid per request in USDC on Base using the x402 payment protocol","exampleAgentPrompt":"Can you convert this text to spoken audio for me: 'Welcome to Linkrra Pearl Pool. Your inference request has been processed.' — I need it as a WAV file.","exampleUseCases":[{"title":"Narrate a product announcement","prompt":"Turn this product launch copy into spoken audio as a WAV: 'Introducing our new AI-powered assistant — smarter, faster, and always ready to help.' I'll use it for the promo video."},{"title":"Generate voice for a chatbot response","prompt":"My chatbot just replied with 'Your order has been shipped and will arrive by Thursday.' Can you synthesize that into a WAV audio clip so I can play it back to the user?"},{"title":"Create audio from a written article","prompt":"I want to listen to this article introduction: 'The global AI market is projected to reach 1.8 trillion dollars by 2030, driven by rapid advances in language models.' Can you generate a WAV audio file of it being read aloud?"}],"resultDescription":"A binary WAV audio file containing the synthesized speech corresponding to the input text. The response is raw audio bytes with MIME type audio/wav, ready for playback or storage.","failureModes":["402 Payment Required — x402 challenge returned if payment header is missing or incorrect; agent must complete USDC payment on Base before retrying","Invalid input schema — missing required fields (input.type, input.method, input.bodyType, input.body, output.type, output.mimeType) returns a validation error","Unsupported model or voice — if the requested TTS model is unavailable in the catalogue, request may fail","Network or inference node unavailability — decentralized GPU pool may have intermittent availability","Malformed payment — incorrect USDC amount or wrong chain (must be Base, eip155:8453) causes payment rejection"],"whenToPreferThis":"Choose this endpoint when you need OpenAI-compatible TTS with per-request USDC micropayments on Base (x402 protocol), especially in autonomous agent pipelines that handle crypto payments natively. It is well-suited for agents that need flexible, pay-as-you-go voice synthesis without subscription billing, and when integration with the x402 payment standard is already established.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T18:31:09.999Z","isFirstParty":false,"canonicalSlug":"linkrra-pearl-pool-text-to-speech-tts-11fbec44"}