{"uid":"cap_dF89mRAKBBX8L1ZoE94oT","slug":"x402-voice-to-text-transcription-56556834","name":"x402 Voice-to-Text Transcription","description":"Speech-to-text transcription for voice messages and audio clips. Upload a wav, mp3, m4a, ogg or webm file as multipart form-data and get the spoken text back as JSON. Runs a dedicated ASR model, so short noisy voice notes transcribe accurately. Accepts clips up to 10 minutes / 25 MB, billed per 10-second block. Use it to turn voice notes, call recordings, podcast clips or voicemail into text an agent can read.","url":"https://voice.cyberwarex.com/transcribe?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"file":{"type":"string","format":"binary","description":"Audio file to transcribe (wav, mp3, m4a, ogg, webm, flac). Max 10 minutes and 25 MB."}}},"responseSchema":{"type":"json","example":{"text":"Hey, quick voice note about the Q3 roadmap. Can we move the launch review to Thursday?"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.015","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":"$0.015/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_BBASXaO4Srmf2iSgs1OTQ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.015","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Transcribes uploaded audio files to text, billed per 10-second block via x402 micropayment","exampleAgentPrompt":"Can you transcribe this audio recording for me? I have a binary audio file from an interview I need converted to text.","exampleUseCases":[{"title":"Transcribing a recorded meeting","prompt":"I recorded our team meeting as an audio file — can you transcribe it to text so I can share the notes with everyone?"},{"title":"Converting voice memo to text","prompt":"I have a voice memo I recorded on my phone with some ideas I want to write up — please transcribe it to text for me."},{"title":"Transcribing a podcast interview","prompt":"Can you transcribe this audio clip from a podcast interview into text so I can quote it in my article?"}],"resultDescription":"Returns a text transcript of the spoken content in the uploaded audio file, extracted from the binary audio data and billed per 10-second block of audio processed.","failureModes":["Unsupported audio format or corrupted file returns an error","Payment failure via x402 protocol prevents transcription","Audio file too large or malformed binary data returns rejection","Very noisy or low-quality audio may result in inaccurate or incomplete transcription","Missing or empty file field returns a validation error"],"whenToPreferThis":"Choose this endpoint when you need to convert speech audio to text and want pay-per-use micropayment billing via the x402 protocol, avoiding subscription commitments. Suitable for agents that process variable volumes of audio on demand.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T00:37:39.366Z","isFirstParty":false,"canonicalSlug":"x402-voice-to-text-transcription-56556834"}