{"uid":"cap_XPwBfpJ4UG-a5Q-oFW2BM","slug":"gedx402-asr-nova-3-speech-to-text-f2e91424","name":"GEDX402 ASR Nova-3 Speech-to-Text","description":"x402 workers ai. pay with usdc on base, polygon, arbitrum, world, or solana. no api keys.","url":"https://media.gedx402.com/v1/asr/nova-3","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"audio":{"type":"string","description":"Base64-encoded audio (WAV, MP3, etc.)."}}},"responseSchema":{"type":"json","example":{"text":"Transcribed speech."}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.067","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":"$0.067/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.067","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.067","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_npFKZEtQ92Xz5T3FUcqJQ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.067","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Transcribes base64-encoded audio files to text using the Nova-3 ASR model, payable with USDC on multiple blockchains via x402 protocol","exampleAgentPrompt":"Transcribe this audio recording for me — here's the base64-encoded WAV: [base64 string]. Pay using USDC via x402.","exampleUseCases":null,"resultDescription":"A JSON object with a 'text' field containing the transcribed speech as a plain-text string, e.g. {\"text\": \"Transcribed speech.\"}","failureModes":["Invalid or malformed base64 audio input returns an error","Unsupported audio format may result in transcription failure","Payment failure or insufficient USDC balance returns HTTP 402","Network timeout for large audio files","Empty or silent audio returns empty transcript"],"whenToPreferThis":"Choose this endpoint when you need automatic speech recognition without managing API keys, and want to pay per-call with USDC on Base, Polygon, Arbitrum, World, or Solana. Particularly useful for agents operating in Web3 environments or when avoiding credential management overhead is important.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:43:29.121Z","isFirstParty":false}