{"uid":"cap_6CIY6CfbfhwKon7oD5E7S","slug":"x402-dellbot-win-0e0cce50","name":"x402.dellbot.win Speech-to-Text (Whisper/Parakeet/xAI)","description":"","url":"https://x402.dellbot.win/transcribe?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object","required":["file"],"properties":{"file":{"type":"string","format":"binary","description":"Audio file (WAV/FLAC/M4A/MP3/OGG/WEBM), max 300s duration, <25MB"},"model":{"enum":["fal-ai/wizper","nvidia/parakeet-tdt-0.6b-v3","openai/whisper-large-v3","stt-xai-v1"],"type":"string"},"language":{"type":"string","description":"ISO 639-1 hint (e.g. en); optional"},"timestamps":{"type":"boolean","default":false},"response_format":{"enum":["json","text"],"type":"string","default":"json"}}},"type":{"type":"string","const":"http"},"method":{"enum":["POST","PUT","PATCH"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"text":{"type":"string"},"duration":{"type":"number"},"timestamps":{"type":"object"}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.050000","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","requiresHandshake":false,"reviewCount":2,"rating":{"score":"0.42","successRate":"0.90","reviews":2,"stars":"2.7","state":"rated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.050000/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_3C4i4c93TY1mU7cnPmREf","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Transcribes audio files (WAV/FLAC/M4A/MP3/OGG/WEBM) to text using Whisper Large v3, NVIDIA Parakeet, fal Wizper, or xAI STT, returning JSON with text, duration, and optional timestamps","exampleAgentPrompt":"Transcribe this meeting recording (meeting.mp3, about 4 minutes long) to text using Whisper Large v3 and include word-level timestamps so I know when each part was said.","exampleUseCases":null,"resultDescription":"A JSON object containing: `text` (the full transcription string), `duration` (length of audio in seconds), and optionally `timestamps` (word- or segment-level timing data if requested). Returns HTTP 400 if audio exceeds 300 seconds.","failureModes":["Audio duration exceeds 300 seconds → HTTP 400 error; check duration before sending","Unsupported audio format → error response; only WAV/FLAC/M4A/MP3/OGG/WEBM accepted","Invalid model name specified → fallback or error","Payment not included or insufficient → x402 payment required error","File too large or corrupted → upload or processing error","Language hint not recognized → may fall back to auto-detection"],"whenToPreferThis":"Choose this endpoint when you need affordable, multi-model speech-to-text transcription via a pay-per-call x402 micropayment model ($0.05 USDC). Ideal for agents needing Whisper Large v3 quality or NVIDIA Parakeet/xAI STT alternatives without a subscription, for audio files under 5 minutes. Prefer over managed STT APIs when minimizing cost per call or when operating in an x402-enabled payment flow.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":29,"lastUsedAt":"2026-08-11T15:23:37.594Z","lastSuccessfullyRanAt":"2026-07-24T11:52:34.138Z","lastHealthCheckAt":"2026-10-23T01:24:53.863Z","isFirstParty":false,"canonicalSlug":"x402-dellbot-win-0e0cce50"}