{"uid":"cap_NlbtRYhHB9nkpiB-o8XRU","slug":"agent402-audio-transcription-492e8d15","name":"Agent402 Audio Transcription","description":"OpenAI's own transcription wire: POST multipart/form-data with a `file` part and get the transcript back. Point any Whisper-shaped SDK at this gateway and pay per call with USDC, no account and no API key. Same model and same four-minute cap as /api/transcribe, which takes a URL instead of an upload; /v1/pro/audio/transcriptions takes it to ten minutes.","url":"https://agent402.tools/v1/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":3.2}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.03","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":"$0.03/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_gGV4UL0QkUJXSH7CM1Zpb","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.03","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 a speech-to-text model, returning the transcript, model used, and audio duration","exampleAgentPrompt":"Can you transcribe this audio file for me? It's an English-language interview recording — just upload it and give me the full text of what was said.","exampleUseCases":[{"title":"Meeting recording to text","prompt":"I have a recording of our team standup from this morning — can you transcribe it to text so I can share the notes with everyone who missed it?"},{"title":"Multilingual podcast transcription","prompt":"Transcribe this Spanish-language podcast episode for me — the language is Spanish so use that as the hint to get better accuracy."},{"title":"Voice memo digitization","prompt":"I recorded a quick voice memo on my phone with some ideas I want to turn into written notes — can you transcribe it word for word?"}],"resultDescription":"A JSON object containing the full transcript text of the audio, the name of the model used for transcription (e.g. 'gpt-transcribe'), and the duration of the audio in seconds.","failureModes":["Unsupported audio format — endpoint may reject non-standard file types","Audio too noisy or low quality — transcript may contain errors or gaps","Language hint mismatch — providing a wrong ISO-639-1 code may degrade accuracy","File too large — very long recordings may exceed size or time limits","Payment failure — if USDC balance or card payment is declined the call is rejected"],"whenToPreferThis":"Choose this endpoint when you need pay-per-call audio transcription with no registration, API keys, or subscription — ideal for agents running sporadic or low-volume transcription tasks. It is well-suited for x402/MPP micropayment workflows and supports an optional language hint for multilingual audio, making it more flexible than fixed-language alternatives.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T22:56:57.347Z","isFirstParty":false,"canonicalSlug":"agent402-audio-transcription-492e8d15"}