{"uid":"cap_W5VuTrHmnctX0gQMOAdZO","slug":"agent402-tools-audio-transcription-5bf2bf36","name":"agent402.tools Audio Transcription","description":"Transcribe audio to text using OpenAI (gpt-4o-mini-transcribe). Provide a URL to an audio file (mp3, wav, m4a, etc.) and get back the transcript. No API key needed; pay per call via x402. Max 5 minutes of audio, 25 MB file size.","url":"https://agent402.tools/api/transcribe","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"url":{"type":"string","description":"URL of the audio file to transcribe (mp3, wav, m4a, ogg, flac, webm)"},"language":{"type":"string","description":"Optional ISO-639-1 language code (e.g. 'en', 'es', 'fr') for better accuracy"}}},"responseSchema":{"type":"json","example":{"text":"Hello, this is a sample transcription.","model":"gpt-4o-mini-transcribe","duration":3.5,"language":"en","provider":"openai"}},"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":"0.95","reviews":0,"stars":null,"state":"rated"},"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_sqUQ_17TyrtB_OghSjnfV","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 audio file (given by URL) to text using OpenAI gpt-4o-mini-transcribe, with per-call payment via x402","exampleAgentPrompt":"Can you transcribe this audio file for me? It's an English podcast clip at https://example.com/clip.mp3 — just give me the full text of what's said.","exampleUseCases":null,"resultDescription":"A plain-text transcript of the spoken content in the provided audio file, extracted using OpenAI's gpt-4o-mini-transcribe model. Covers up to 5 minutes of audio and files up to 25 MB.","failureModes":["Audio file URL is unreachable or returns a non-200 response — transcription fails","File format not supported (only mp3, wav, m4a, ogg, flac, webm accepted)","File exceeds 25 MB size limit — request rejected","Audio duration exceeds 5 minutes — request rejected","Invalid or unsupported ISO-639-1 language code provided — may fall back to auto-detect or error","Payment via x402 not completed or insufficient — request blocked"],"whenToPreferThis":"Choose this endpoint when you need quick, pay-per-call audio transcription with no API key setup, for audio files accessible via a public URL, up to 5 minutes long and 25 MB in size. Ideal for agents that handle occasional or one-off transcription tasks without committing to a subscription or managing OpenAI credentials directly.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":269,"lastUsedAt":"2026-09-03T14:16:12.865Z","lastSuccessfullyRanAt":"2026-07-23T08:00:49.782Z","lastHealthCheckAt":"2026-09-16T06:54:10.394Z","isFirstParty":false}