{"uid":"cap_gtBJ4GpO2hcQkBETDCVHV","slug":"molcloud-audio-transcription-3c7dcb96","name":"MolCloud Audio Transcription","description":"41 pay-per-request AI, search, headless browser, crypto alpha & memory APIs for autonomous agents settling in USDC on Base via x402 v2.","url":"https://api.molcloud.net/api/ai/transcribe?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"audioUrl":{"type":"string","description":"Public URL of audio file (MP3, WAV, OGG, M4A)"},"language":{"type":"string","description":"Optional ISO language hint (e.g. en)"},"audioBase64":{"type":"string","description":"Optional base64-encoded audio payload"}}},"responseSchema":{"type":"json","example":{"data":{"text":"Transcribed speech text...","segments":[]},"status":"success","endpoint":"/api/ai/transcribe"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.006","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":"$0.006/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.006","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.006","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_aM-WKSVHmFxjhWBl3IVp-","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.006","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Transcribes speech from an audio file (URL or base64) to text, returning the transcript and optional segments via pay-per-request USDC micropayment.","exampleAgentPrompt":"Can you transcribe this MP3 interview recording for me? Here's the public URL: https://example.com/interview.mp3 — the audio is in English.","exampleUseCases":[{"title":"Podcast episode transcription","prompt":"I have a podcast episode hosted at https://cdn.mypodcast.com/ep42.mp3 — can you transcribe it to text so I can publish show notes? It's in English."},{"title":"Customer call quality review","prompt":"Transcribe this customer support call recording from https://storage.mycrm.com/calls/call-8821.wav so I can review what was said. The language is English."},{"title":"Multilingual voice memo to text","prompt":"I recorded a voice memo in Spanish and uploaded it here: https://files.myapp.com/memo_es.m4a — please transcribe it and use 'es' as the language hint."}],"resultDescription":"Returns a JSON object with a 'data' field containing 'text' (the full transcribed string) and 'segments' (an array of timed or segmented transcript chunks), plus a 'status' field ('success') and the endpoint path confirming which API was called.","failureModes":["Invalid or inaccessible audio URL returns an error status","Unsupported audio format (e.g. FLAC) may fail or return empty transcript","Very long audio files may time out or exceed processing limits","Incorrect language hint may degrade transcription accuracy","Malformed base64 payload causes decoding error","Network fetch of audio URL fails if the file is behind authentication or a CDN block"],"whenToPreferThis":"Choose this endpoint when you need quick, pay-per-request speech-to-text without a subscription, especially in autonomous agent workflows that settle micropayments in USDC on Base via x402. It is well-suited for agents that process arbitrary audio URLs on demand and need a simple transcript+segments output without managing a dedicated ASR service account.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-19T20:21:08.280Z","isFirstParty":false,"canonicalSlug":"molcloud-audio-transcription-3c7dcb96"}