{"resource":"https://agent402.tools/api/audio-convert","service":"Audio convert (to MP3)","areas":["other"],"answering":true,"http_status":402,"latency_ms":330,"price_usdc":0.02,"buyers_30d":3,"calls_30d":4,"description":"Extract/convert the audio track of any media URL (mp4, mov, wav, m4a, ogg…) to MP3 - the \"mp4 to mp3\" conversion, deterministic ffmpeg, no AI. Body: {\"url\":\"https://…/video.mp4\",\"bitrate\":\"192k\"?}. Returns the MP3 as base64.","id":"e03e47ff2930","category":"Calculators and conversions","checked_day":"2026-10-11","page":"https://velliumandco.com/sellers/e03e47ff2930"}