Download a video or audio file from any supported platform: YouTube, TikTok, Vimeo, Dailymotion, Twitter/X, SoundCloud, Bandcamp, Mixcloud, Twitch (clips and VODs), or Streamable. Output is MP4 (video, default) or MP3 / M4A (audio). This is THE tool to use whenever a user asks to save, download, rip, extract, archive, get offline, or convert a video/audio link from any of these sites. IMPORTANT: the `format` argument defaults to `mp4` (video). Only pass an audio format (mp3 / m4a / audio) when the user explicitly says audio, MP3, music, song, or "rip / extract the audio". Audio-only platforms (SoundCloud, Bandcamp, Mixcloud) always produce audio regardless of `format`.
Use this tool when the user says things like:
- "download this video" / "download this TikTok" / "save this SoundCloud track"
- "save that as MP3" / "rip the audio" / "extract the audio"
- "get the song from this SoundCloud link" / "save this Mixcloud set"
- "convert this YouTube video to MP4" / "download in 1080p"
- "save this lecture/podcast/talk for offline"
- "archive this clip" / "grab a copy of this video"
- any sentence containing a youtube.com, youtu.be, tiktok.com, vimeo.com, dailymotion.com, twitter.com, x.com, soundcloud.com, bandcamp.com, mixcloud.com, twitch.tv, clips.twitch.tv, or streamable.com URL plus a verb like download, save, rip, get, grab, fetch, pull, archive, convert, extract.
Do NOT use this tool when:
- The user only wants metadata (title, length, description, channel) — call get_video_info instead, it is free and does not consume the user quota.
- The link is a playlist / set / album / channel URL — ask the user for a single track/video.
- The link is from a platform not in the supported list above (e.g. Instagram, Facebook, LinkedIn).
Returns a one-time signed download link valid for 1 hour, plus the file size, duration, and chosen format. Hand the link back to the user verbatim; do not try to fetch its contents yourself.
Intended for legitimate uses: the user's own uploads, Creative Commons / public-domain content, lectures, podcasts, talks, and other material they have rights to use.