{"uid":"cap_5zzCyy4idQav7roCZj7h4","slug":"dexl-agents-audio-transcription-a05816c3","name":"DexL Agents Audio Transcription","description":"Turn speech into text: send base64 audio, get a plain transcript back. Handles WAV, MP3, FLAC and OGG up to about eight minutes per call. Priced per call with x402.","url":"https://agents.dexl.io/v1/audio/transcriptions","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"audio":{"type":"string","description":"Base64-encoded audio, under about 8 MB."},"prompt":{"type":"string","description":"Optional instruction, defaults to a plain transcript."},"mime_type":{"type":"string","description":"Audio MIME type, defaults to audio/wav."}}},"responseSchema":{"type":"json","example":{"text":"the transcript","duration_seconds":4.2}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002508","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.40","reviews":0,"stars":null,"state":"rated"},"availabilityStatus":"unknown","priceObserved":{"p10Cents":"0.4110","medianCents":"0.4110","p90Cents":"0.4110","minCents":"0.4110","maxCents":"0.4110","p95Cents":"0.4110","sampleCount":1,"varies":false,"failureChargeRate":null},"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.002508/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002508","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002508","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_CwoebYWk8fValh7wZbCJ3","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002508","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Converts base64-encoded audio files (WAV, MP3, FLAC, OGG) into plain text transcripts, paid per call via x402.","exampleAgentPrompt":"Can you transcribe this WAV recording for me? Here's the base64-encoded audio — just give me back the plain text of what was said.","exampleUseCases":[{"title":"Transcribe customer support call","prompt":"I have a recorded customer support call in MP3 format encoded as base64 — can you transcribe it into plain text so I can review what was discussed?"},{"title":"Voice memo to written notes","prompt":"I just recorded a voice memo as a WAV file and I need it converted to text. Here's the base64 audio, and please keep it as a straightforward transcript with no formatting."},{"title":"Podcast clip transcription","prompt":"Can you transcribe this FLAC audio clip from my podcast? It's base64-encoded and about 4 minutes long — I need the exact words spoken as plain text."}],"resultDescription":"Returns a JSON object containing a 'text' field with the full plain-text transcript of the audio, and a 'duration_seconds' field indicating the length of the processed audio in seconds.","failureModes":["Audio exceeds ~8 MB or ~8 minutes — request will be rejected or truncated","Invalid base64 encoding causes a decoding error","Unsupported MIME type beyond WAV, MP3, FLAC, OGG returns an error","Payment via x402 fails or insufficient USDC balance — 402 Payment Required","Poor audio quality or heavy background noise leads to inaccurate transcription","Empty or silent audio returns an empty or minimal transcript"],"whenToPreferThis":"Choose this endpoint when you need a simple, pay-per-call speech-to-text conversion without managing subscriptions or API keys, especially in agentic or machine-to-machine workflows that already use x402 micropayments. Ideal for short-to-medium audio clips (under 8 minutes) in common formats. Prefer this over larger transcription platforms when cost predictability per call and x402 compatibility matter.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":12,"lastUsedAt":"2026-09-08T15:48:55.348Z","lastSuccessfullyRanAt":"2026-09-08T15:44:16.334Z","lastHealthCheckAt":"2026-09-15T10:29:19.647Z","isFirstParty":false}