{"uid":"cap_WmDqnSeL1BhHH7lpdbity","slug":"fastx402-audio-transcription-3cee29fe","name":"FastX402 Audio Transcription","description":"146 pay-per-call tools for AI agents, from $0.001 per request in USDC on Base or Solana with x402. 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The audio is at https://example.com/episode42.mp3 — auto-detect the language and give me the full text with timestamps.","exampleUseCases":[{"title":"Podcast episode transcript extraction","prompt":"Transcribe this podcast episode into text with timestamps — the mp3 is at https://media.mypodcast.com/ep100.mp3. Auto-detect the language."},{"title":"Multilingual voice memo to text","prompt":"I have a Turkish voice memo at https://storage.example.com/memo.m4a — can you transcribe it into text? The language is Turkish (tr)."},{"title":"Meeting recording caption generation","prompt":"Please convert this meeting recording to a timestamped transcript: https://recordings.company.com/standup_2024-06-01.wav. I need the full text and each segment's start and end times."}],"resultDescription":"A JSON object containing the full transcript text, the detected or specified language code (e.g. 'en', 'tr'), an array of timed segments each with start time, end time, and segment text, and the total audio duration in seconds.","failureModes":["Unreachable or invalid audio URL returns an error (file must be a publicly accessible http/https link)","Unsupported file format (only mp3, m4a, wav, ogg, webm, flac accepted) causes a rejection","Very long audio files may exceed processing limits or increase latency significantly","Incorrect language code provided causes degraded transcription quality","Payment failure via x402 (insufficient USDC balance or unsupported wallet) blocks the request"],"whenToPreferThis":"Choose this endpoint when you need fast, pay-per-call audio-to-text transcription without setting up an API key or account. It's ideal for AI agents that need occasional or sporadic transcription of publicly accessible audio files in multiple formats and languages, billed precisely per request in USDC on Base. Prefer it over subscription-based services when cost predictability at low volume matters, or when you need automatic language detection alongside timestamped segments.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-17T12:30:06.890Z","isFirstParty":false,"canonicalSlug":"fastx402-audio-transcription-3cee29fe"}