{"name":"mp4-to-mp3-api","description":"Converts MP4, MOV, WEBM, MKV, AVI, M4V, or FLV URLs into hosted MP3 output with selectable 96, 128, or 192 kbps bitrate. CloudConvert backend, 60-min / 500MB max. Use it as an MP4 to MP3 API, video to MP3 converter, or extract-audio-from-video endpoint.","price":"$0.02","method":"POST","input_schema":{"properties":{"video_url":{"type":"string","description":"Public URL of the source video. Max 500MB / 60 minutes."},"bitrate":{"type":"number","enum":[96,128,192],"description":"Output MP3 bitrate in kbps. 96 (smaller, voice), 128 (default, balanced), 192 (higher quality)."}},"required":["video_url"]},"input_example":{"video_url":"https://samplelib.com/mp4/sample-5s.mp4","bitrate":128},"output_example":{"audio_url":"https://...mp3","bitrate":128,"file_size_bytes":161109,"source_url":"https://samplelib.com/mp4/sample-5s.mp4"},"x402_payment_required":true,"x402_facilitator":"https://api.cdp.coinbase.com/platform/v2/x402"}