{"uid":"cap_Rna-JlQ1eByBHUPkKVW5A","slug":"agent402-tools-audio-transcription-pro-7f7dd200","name":"agent402.tools Audio Transcription Pro","description":"Transcribe audio to text with the gpt-transcribe model - the same model as /api/transcribe with a longer cap. Provide a URL to an audio file and get back the transcript; add diarize:true for speaker labels, word timestamps and a language confidence score (the scribe-v2 model). No API key needed; pay per call via x402. Max 10 minutes of audio, 25 MB file size.","url":"https://agent402.tools/api/transcribe-pro?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"url":{"type":"string","description":"URL of the audio file to transcribe (mp3, wav, m4a, ogg, flac, webm)"},"diarize":{"type":"boolean","description":"true: transcribe with the scribe-v2 model and add speaker labels and word timestamps (`words`, `speakers`) and `language_confidence` (0 to 1, the model's confidence in the detected language). Same price and cap. Default false"},"language":{"type":"string","description":"Optional ISO-639-1 language code (e.g. 'en', 'es', 'fr') for better accuracy"}}},"responseSchema":{"type":"json","example":{"text":"Hi, this is the Agent402 sample recording. Can you hear me clearly? Yes, loud and clear. There are two of us on this clip, so the transcript can tell us apart.","model":"gpt-transcribe","duration":12.6,"language":"en","provider":"openai"}},"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_8MvlLPu4M2VMN-VNUdB57","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 audio files to text using OpenAI gpt-4o-transcribe at high accuracy, paid per-call via x402 with no API key required","exampleAgentPrompt":"Can you transcribe this audio file for me? It's an English-language interview recording at https://example.com/interview.mp3 — I need the full text transcript.","exampleUseCases":null,"resultDescription":"Returns the full text transcript of the audio file, generated by OpenAI gpt-4o-transcribe. Supports audio up to 10 minutes and 25 MB in size.","failureModes":["Audio file URL is unreachable or returns a non-200 response","File exceeds 25 MB size limit","Audio exceeds 10 minutes in length","Unsupported audio format (not mp3, wav, m4a, ogg, flac, or webm)","Invalid or unparseable language code provided","Payment via x402 fails or insufficient USDC balance","Audio file contains no discernible speech"],"whenToPreferThis":"Choose this endpoint when you need high-accuracy speech-to-text transcription powered by OpenAI gpt-4o-transcribe without managing your own API keys, and your audio is accessible via a public URL within 10 minutes / 25 MB. It is ideal for agents that handle sporadic transcription tasks and want to pay per call rather than maintain a subscription.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":1,"lastUsedAt":"2026-07-09T15:03:43.985Z","lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T13:18:19.267Z","isFirstParty":false,"canonicalSlug":"agent402-tools-audio-transcription-pro-7f7dd200"}