{"uid":"cap_0-AaeVDaOihhjAC0jxN0b","slug":"fetchharbor-benlab-download-audio-subtitles-13700339","name":"fetchharbor.benlab.download Audio Subtitles","description":"Transcribe bounded audio and generate deterministic SRT or WebVTT subtitle text locally. Audio, transcripts, and subtitles are not retained.","url":"https://fetchharbor.benlab.download/audio/subtitles","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"format":{"enum":["srt","vtt"],"type":"string"},"language":{"type":["string","null"],"maxLength":16},"audio_base64":{"type":"string","description":"Base64-encoded audio; decoded size is operator limited.","contentEncoding":"base64"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.035","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":"$0.035/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.035","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.035","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_r7t2qN1NRq_77v0XHAwjh","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.035","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Transcribe base64-encoded audio locally and return deterministic SRT or WebVTT subtitle files, with no data retention.","exampleAgentPrompt":"Transcribe this audio clip and give me a WebVTT subtitle file — I'll send the audio as base64 and the language is English.","exampleUseCases":[{"title":"Podcast episode captioning","prompt":"I have a 3-minute podcast segment encoded in base64 — can you transcribe it and produce an SRT subtitle file in English so I can add captions to the published episode?"},{"title":"Multilingual video subtitle generation","prompt":"Here's the base64 audio from a French interview clip. Can you transcribe it and return a WebVTT subtitle file, using French as the language hint?"},{"title":"Accessibility captions for recorded meeting","prompt":"I recorded a team meeting and exported the audio as base64. Please transcribe it and generate an SRT file so I can attach subtitles for accessibility purposes — the language is English."}],"resultDescription":"Returns a deterministic SRT or WebVTT subtitle text file containing timed transcript segments derived from the submitted audio. No audio, transcript, or subtitle data is retained on the server after the response is delivered.","failureModes":["Audio exceeds operator-defined decoded size limit — request rejected","Invalid or malformed base64 encoding — decoding error returned","Unsupported audio codec or format — transcription fails","Unrecognized or unsupported language code — may fall back to auto-detect or error","Missing required format enum value — validation error"],"whenToPreferThis":"Choose this endpoint when you need privacy-preserving, locally processed subtitle generation with no data retention, and require output in a standard subtitle format (SRT or WebVTT) rather than raw transcript text. Prefer it over cloud ASR services when data confidentiality is a concern or when deterministic, reproducible subtitle output is required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T17:51:00.729Z","isFirstParty":false}