{"name":"youtube-transcript","description":"Fetch the transcript of any YouTube video. Pulls auto-generated or manual captions and returns full text plus per-segment {start, duration, text}, with an optional language pick. Backed by Supadata's transcript pipeline server-side — no caller key required; returns a clear 404 when a video has no transcript. Use it as a YouTube closed-caption fetcher or video subtitles puller.","price":"$0.01","method":"POST","input_schema":{"properties":{"video_id_or_url":{"type":"string","description":"YouTube video ID (11-char) or full URL (youtube.com/watch?v=…, youtu.be/…, /embed/…, /shorts/…)."},"language":{"type":"string","description":"Preferred caption language code (e.g. 'en', 'es', 'ja'). Default: pick the first available."},"include_chapters":{"type":"boolean","description":"Parse chapter timestamps from the video description. Default false."}},"required":["video_id_or_url"]},"input_example":{"video_id_or_url":"dQw4w9WgXcQ"},"output_example":{"video_id":"dQw4w9WgXcQ","title":null,"channel":null,"channel_id":null,"duration_seconds":null,"language":"en","is_auto_generated":null,"text":"We're no strangers to love. You know the rules and so do I.","char_count":60,"segment_count":2,"segments":[{"start":0,"duration":4.5,"text":"We're no strangers to love"},{"start":4.5,"duration":4,"text":"You know the rules and so do I"}],"chapters":null,"source":"supadata"},"x402_payment_required":true,"x402_facilitator":"https://api.cdp.coinbase.com/platform/v2/x402"}