{"uid":"cap_44NK6X44qOK9qsf2psFHi","slug":"agent402-audio-transcription-b3362234","name":"Agent402 Audio Transcription","description":"OpenAI's transcription wire on the ten-minute tier: POST multipart/form-data with a `file` part. Same model as /v1/audio/transcriptions with a longer cap, for a recording a four-minute route refuses.","url":"https://agent402.tools/v1/pro/audio/transcriptions?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"file":{"type":"string","description":"The audio file, as a multipart part named `file`"},"diarize":{"type":"string","description":"\"true\" for speaker labels and word timestamps (the scribe-v2 model)"},"language":{"type":"string","description":"Optional ISO-639-1 hint"}}},"responseSchema":{"type":"json","example":{"text":"Example transcript.","model":"gpt-transcribe","duration":420.5}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.1","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":"$0.1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_jP76Xlpiv3_xToNv1ZthC","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.1","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Transcribes an uploaded audio file to text using GPT-based speech recognition, returning the transcript, model used, and audio duration.","exampleAgentPrompt":"Can you transcribe this audio file for me? It's an English interview recording — I need the full text transcript back.","exampleUseCases":[{"title":"Meeting recording to text notes","prompt":"I just uploaded a recording of our team standup meeting — can you transcribe it into text so I can turn it into meeting notes?"},{"title":"Multilingual podcast transcription","prompt":"Transcribe this Spanish-language podcast episode for me — use 'es' as the language hint so the model gets the right context."},{"title":"Voice memo extraction","prompt":"I have a voice memo I recorded on my phone and I need the spoken words converted to text — can you run a transcription on the audio file?"}],"resultDescription":"Returns a JSON object containing: 'text' (the full transcript of the audio), 'model' (the transcription model used, e.g. 'gpt-transcribe'), and 'duration' (the length of the audio in seconds as a float).","failureModes":["Unsupported audio format — endpoint may reject non-standard file types","Audio too long or too large — may timeout or return an error for very large files","Invalid or missing file part in multipart request — returns error","Unrecognized language hint — may fall back to auto-detection or return an error","Insufficient payment (x402) — call rejected if USDC balance is insufficient"],"whenToPreferThis":"Choose this endpoint when you need pay-per-call audio transcription with no API key or signup required, especially in agentic workflows using x402 or MPP micropayment protocols. Ideal for one-off or low-volume transcription tasks where setting up a full OpenAI account is unnecessary. Prefer this over raw OpenAI API when you want metered, per-call billing in USDC without managing API credentials.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T22:56:57.369Z","isFirstParty":false,"canonicalSlug":"agent402-audio-transcription-492e8d15"}